Wearable Tech on Ultrahuman Blog

Ovulation Symptoms: A Complete Cycle-Tracking Guide

Tue, 16 Jun 2026 18:17:19 +0000

_{This article was medically reviewed by Kate Davies RN, BSc (Hons), FP Cert_{, Vice President Medical Women’s Health & Longevity at Ultrahuman.}}

Ovulation is the release of a mature egg from the ovary, usually once per cycle around the middle, and its most reliable signs are a change in cervical mucus to a clear, slippery, egg-white texture, a sustained rise in basal body temperature afterward, and a short surge in luteinising hormone (LH) just before. Some women also notice mild one-sided pelvic pain, a higher sex drive, or tender breasts, while others feel nothing at all. Reading these signals tells you when your fertile window is open, whether you're ovulating at all, and when something is worth raising with a doctor. This guide covers the symptoms, the timing, and the most reliable ways to track ovulation, including for irregular cycles.

Follicular Phase Explained: Energy, Workouts, and Mood

Tue, 16 Jun 2026 11:42:49 +0000

_{This article was medically reviewed by Kate Davies RN, BSc (Hons), FP Cert_{, Vice President Medical Women’s Health & Longevity at Ultrahuman.}}

The follicular phase is the first half of the menstrual cycle, running from the first day of your period until ovulation, during which an egg matures ready for ovulation and estrogen steadily climbs. It's the half of the cycle most associated with rising energy and a brighter mood, and it ends with the hormonal trigger for ovulation. Understanding it helps you read your own cycle, time the fertile window, and make sense of how you feel across the month. This guide covers what the follicular phase is, how long it lasts, how it shapes energy and mood, and what the evidence actually says about training around it.

Is Stevia Bad for You? What the Research Shows

Fri, 12 Jun 2026 11:45:24 +0000

Stevia is a plant-derived, zero-calorie sweetener made from the leaf of Stevia rebaudiana, and for most people the purified form is considered safe and does not raise blood sugar. Its sweetness comes from compounds called steviol glycosides, which are hundreds of times sweeter than sugar but pass through the body without being used for energy. That combination of intense sweetness, no calories, and no glucose spike is why it has become a go-to sugar alternative. The fuller picture has some nuance worth knowing, especially around purified versus whole-leaf products and the additives blended into retail "stevia." This guide walks through what the research actually says.

Heart Rate Zones Explained: Zone 1–5 for Fat Burn vs Cardio

Wed, 10 Jun 2026 17:08:16 +0000

Heart rate zones are five intensity bands — from easy recovery to all-out effort — defined as percentages of your maximum heart rate, each one training a different part of your fitness. Train in the lowest zones and you build an aerobic base and burn a higher share of fat for fuel. Push into the top zones and you develop speed, power, and peak cardiovascular capacity. The catch is that most people misread the labels on their watch, especially the famous "fat-burning zone." This guide explains what each zone is, how to calculate yours, what the science actually says about burning fat, and how to train each one.

What Is Perimenopause? Symptoms, Stages, and What to Expect

Tue, 09 Jun 2026 19:21:16 +0000

Perimenopause is the transition leading up to menopause — the years when the ovaries gradually wind down and hormones begin to fluctuate, before periods stop for good. Menopause itself is a single point in time — defined as 12 months after your final period. Everything before that, from the moment your cycles start changing, is perimenopause. It usually begins in the late 30s or 40s, though in rare cases it can start earlier, and lasts about four to eight years on average. One thing surprises most people — the earliest, most reliable sign isn't hot flashes but a change in your cycle, often with sleep disturbance close behind. This guide covers what perimenopause is, when it starts, the symptoms in the order they typically appear, why they happen, and when to see a doctor.

Is Maltitol Bad for You? Side Effects and Blood Sugar

Tue, 09 Jun 2026 16:20:53 +0000

Maltitol is a sugar alcohol — a type of carbohydrate called a polyol — used to sweeten "sugar-free" and "no sugar added" foods like chocolate, candy, and protein bars. It's roughly 75 to 90 percent as sweet as table sugar with about half the calories, which is why manufacturers reach for it. But unlike calorie-free sweeteners such as sucralose, maltitol is not consequence-free. It still raises blood sugar — it has a real glycemic index — and like other sugar alcohols it can cause gas and bloating, especially in larger amounts. This guide covers what maltitol does in the body, its side effects, how it stacks up against other sugar alcohols, and who should be cautious.

What's a Good Resting Heart Rate by Age?

Mon, 08 Jun 2026 20:27:12 +0000

Your resting heart rate (RHR) is how many times your heart beats per minute when you're completely at rest — typically measured first thing in the morning, or overnight by a wearable. For most healthy adults, a good resting heart rate sits roughly between 50 and 70 beats per minute, and lower is generally better, within reason. The long-standing clinical "normal" range is 60 to 100 bpm, but that band is wide, and well-conditioned people often sit comfortably below it. One thing surprises people — resting heart rate barely changes with age. In Ultrahuman Ring data from more than 500,000 members across nearly 80 million nights, the median held near 56 bpm across every adult age group. This guide breaks down what's normal, what your number means, and how to bring it down.

Is Sucralose Bad For You? What the Research Shows

Mon, 08 Jun 2026 18:46:34 +0000

Sucralose is a zero-calorie artificial sweetener, roughly 600 times sweeter than table sugar, sold most often under the brand name Splenda. For most people, regulators consider it safe at normal intakes (U.S. FDA), and on its own it does not raise blood sugar the way sugar does — which is exactly why it shows up in diet sodas, protein powders, and "no sugar added" foods. But "doesn't spike glucose" and "completely inert in the body" are not the same claim, and recent research on insulin, the gut microbiome, and a sucralose by-product has added real nuance. This guide walks through what a continuous glucose monitor actually shows when you consume sucralose, where the genuine open questions are, and how to decide whether it belongs in your diet.

Is Your Excessive Hunger Polyphagia? When It Signals Insulin Resistance

Mon, 08 Jun 2026 15:35:58 +0000

Polyphagia is the medical term for persistent, excessive hunger that doesn't go away after eating a normal meal. It is different from the everyday feeling of being hungry between meals or wanting seconds of something you enjoy. Polyphagia is the kind of hunger that returns soon after a full meal, that drives you to keep eating without feeling satisfied, and that persists day after day. It is one of the three classic warning signs of diabetes — the "3 P's" of polyphagia (excessive hunger), polyuria (excessive urination), and polydipsia (excessive thirst). It is most commonly associated with poorly controlled or undiagnosed diabetes, but it can also signal thyroid, hormone, or medication issues worth checking. This guide walks through what polyphagia actually is, why it happens, when to take it seriously, and what to do.

Types of Sugar Explained: How Each One Affects Your Body

Fri, 05 Jun 2026 20:31:52 +0000

"Sugar" on a food label isn't one ingredient. The names you'll see — glucose, fructose, sucrose, high-fructose corn syrup, lactose, and a long list of "-oses" and syrups — are different forms of sweet carbohydrate, and they don't all behave the same way in your body. Some spike your blood sugar fast (glucose, maltose). Some bypass blood sugar but get processed by your liver — where high or chronic intake can build up over time (fructose, HFCS). Some are barely absorbed at all (sugar alcohols like erythritol). This guide walks through each common type of sugar, what it actually does in your body, and how to spot it on an ingredient list.

Blood Sugar Levels Chart by Age: What's Normal at Every Life Stage

Fri, 05 Jun 2026 18:07:58 +0000

Your blood sugar is the amount of glucose circulating in your blood right now. For most adults without diabetes, it sits below 100 mg/dL (5.6 mmol/L) before eating and rises to under 140 mg/dL (7.8 mmol/L) two hours after a meal. But "normal" looks different at 8 years old, 38, and 78 — and it tightens significantly during pregnancy. This guide walks through the full chart by age, explains why each range exists, and shows how continuous glucose monitoring (CGM) data fills the picture a single lab number cannot.

How to Get More Deep Sleep: 9 Tactics Backed by Research

Fri, 05 Jun 2026 14:58:08 +0000

Deep sleep is the deepest, most physically restorative stage of non-REM sleep — also called slow-wave sleep — when your body releases growth hormone, consolidates memories, and clears metabolic waste from the brain. Most healthy adults spend roughly 10-20% of their total sleep time in deep sleep (this varies by age and individual), with the largest deep-sleep blocks happening in the first half of the night. You can't force more deep sleep directly, but you can support the conditions that produce it: a consistent sleep schedule, a cool bedroom, limiting caffeine and alcohol, getting morning light, and a wind-down routine that lets your nervous system shift into rest mode before you get into bed.

Preeclampsia Symptoms: Early Warning Signs in Pregnancy

Fri, 05 Jun 2026 11:04:35 +0000

_{_{This article was medically reviewed by Kate Davies RN, BSc (Hons), FP Cert}_{, Vice President Medical Women’s Health & Longevity at Ultrahuman.}}

Preeclampsia is a serious pregnancy complication thataffects 2-8% of pregnancies globally and is one of the leading causes of maternal and perinatal mortality worldwide. The early warning signs include severe headaches, vision changes, sudden swelling of the face or hands, upper abdominal pain, sudden weight gain, and elevated blood pressure. If you're pregnant and experience any of these, seek medical care promptly — do not wait for symptoms to worsen.

How Many Steps a Day to Lose Weight? What the Research Shows

Fri, 05 Jun 2026 10:45:33 +0000

No single step count guarantees weight loss - what matters is whether your daily activity produces a calorie deficit alongside your eating pattern. Research suggests that adults aiming for weight loss typically benefit from 7,000-10,000 steps a day combined with dietary changes, with mortality and metabolic benefits plateauing around 8,000-10,000 steps in most large studies. The famous "10,000 steps a day" figure is a marketing number, not a clinical threshold — and walking alone, without paying attention to food intake, produces only modest weight loss in randomized trials.

What's a Normal Respiratory Rate? Adults, Kids, and Athletes

Wed, 03 Jun 2026 20:06:55 +0000

The normal resting respiratory rate for healthy adults is 12 to 20 breaths per minute. Children breathe much faster — a newborn averages around 44 breaths per minute, dropping to about 26 by age two and gradually settling into the adult range through adolescence. Endurance-trained adults often sit at the lower end of the adult range or just below it, an adaptation from training.

Respiratory rate (the number of breaths you take per minute at rest) is one of the four core vital signs. Unlike heart rate, it's measured by counting rather than by a sensor most people carry — which is why it gets noted less than it should in clinical and self-tracking contexts. Continuous-wear wearables can derive respiratory rate from the same PPG (photoplethysmography) sensor that tracks heart rate, with sleep providing the cleanest measurement window.

Are Nightshade Vegetables Inflammatory? Evidence and Glucose Data

Wed, 03 Jun 2026 14:32:33 +0000

For most people without a diagnosed autoimmune, IBD, or food-sensitivity condition, nightshade vegetables aren’t inflammatory and don’t meaningfully spike blood glucose. The widely-cited claim that they trigger inflammation in joints or worsen autoimmune conditions has weak clinical evidence behind it for the general population. The exception in the nightshade family is potato — but that’s because of starch content, not because of being a nightshade. Tomato is even modestly anti-inflammatory in trial data, driven by lycopene.

Is Diet Coke Bad for You? Aspartame, Glucose, and the CGM Data

Tue, 02 Jun 2026 16:40:41 +0000

The short answer — Diet Coke isn’t dangerous for most people in moderate consumption, but it isn’t a free pass either. CGM data shows minimal direct glucose response, regulators broadly consider aspartame safe, and the gut-microbiome and cardiometabolic research shows modest effects rather than dramatic harm.

Diet Coke contains aspartame and acesulfame potassium — zero-calorie sweeteners — plus caffeine and acidulants. Aspartame has no fermentable carbohydrate, so it produces little to no direct blood-glucose response in continuous glucose monitor (CGM) data. The bigger questions are whether aspartame is safe long-term, whether non-nutritive sweeteners affect gut microbiome and glucose tolerance indirectly, and whether regular consumption raises cardiometabolic risk over time.

Science-backed Ways To Balance Your Hormones Naturally

Fri, 29 May 2026 20:43:33 +0000

This article was medically reviewed by Kate Davies RN, BSc (Hons), FP Cert *, Vice President Medical Women’s Health & Longevity at Ultrahuman .*

Balancing hormones naturally comes down to whether your body cycles cleanly through its hormonal phases each month**.**

Estrogen, progesterone, cortisol, insulin, and thyroid hormones rise and fall in predictable patterns. “Balanced” doesn’t mean flat-line — it means those rhythms run on time and the system doesn’t tip into chronic activation.

Parasympathetic vs Sympathetic: Activate Your Body's "Rest & Digest" Mode

Fri, 29 May 2026 15:38:54 +0000

Your parasympathetic nervous system runs the recovery side of your body. It slows your heart rate, restores digestion, lowers blood pressure, and rebuilds the energy you spent during the day. The sympathetic nervous system is the counterweight. It speeds your heart, dilates your pupils, and prepares you to handle stress, exercise, or anything that needs quick action. Both branches run automatically, both are always partially active, and the balance between them is what most wearables call “recovery.” Reading the balance, and learning how to shift it on demand, turns a vague “I feel stressed” into something measurable.

A1C Calculator: What Your Number Really Means

Thu, 28 May 2026 15:20:11 +0000

A1C is a measure of your average blood sugar over the past 2–3 months, commonly included in metabolic blood panels(also written as HbA1c or HBA1C). Understanding your A1C helps assess your underlying metabolic health. A high number can signal prediabetes or even type 2 diabetes. The conversion table below shows what each A1C value translates to in mg/dL(milligrams per deciliter, the standard US unit for blood glucose). An A1C of 6.5% means your average has been about 140 mg/dL; 5.7% is roughly 117 mg/dL. But your A1C tells only part of the story — two people with the same number can have very different blood sugar patterns underneath, and a few common conditions can throw the reading off.

Sleeping Heart Rate by Age: 532,000 Ring Users' Nightly Data Compared

Thu, 28 May 2026 14:32:24 +0000

Your heart rate drops while you sleep — this is normal and expected. Most adults’ sleeping heart rate runs noticeably lower than their daytime resting heart rate, typically 20-30% lower, with the lowest point reached in the early-morning hours. Understanding what’s typical for your age in wearable data, what raises it (alcohol, late meals, stress, illness, training load), and when a sustained elevation might warrant clinician attention turns nightly sleep data into useful health information.

Glutathione Benefits: The Master Antioxidant Explained

Wed, 27 May 2026 15:37:29 +0000

Glutathione is your body’s main internal antioxidant — a small protein made inside every cell that handles oxidative stress, helps the liver clear toxins, and supports immune function. Levels drop with age and chronic illness, and oral glutathione pill absorption varies widely; the more reliable lever is supplying the body with the building blocks it needs to make its own.

This guide walks through what glutathione really does, the benefits with the best evidence behind them, the foods that help, and where the supplement industry overpromises.

How to Lower A1C Naturally

Tue, 26 May 2026 17:36:27 +0000

A1C is a blood test that reflects your average blood glucose over the past 2-3 months, expressed as a percentage. Lowering A1C matters because most of the levers — diet, exercise, weight, sleep — produce measurable improvements within 8-12 weeks, and every percentage-point reduction is associated with lower diabetes-complication risk — including a 21% reduction in any diabetes-related endpoint and a 37% reduction in microvascular complications per 1% A1C decrease in the UKPDS observational analysis (Stratton IM et al., BMJ 2000, PMID 10938048 ).

Does Red Light Therapy Work? What the Evidence Supports

Mon, 25 May 2026 20:30:57 +0000

Red light therapy uses long-wavelength visible and near-infrared light to influence cellular function, primarily by interacting with mitochondria inside the body’s cells. The evidence base is genuinely strong for several specific applications (skin conditions, pattern hair loss, oral mucositis, localized pain and recovery), thinner for whole-body wellness claims, and the consumer market has expanded faster than the research can keep up with.

This guide walks through what red light therapy actually does, where the published evidence is solid, where it’s still developing, and how to think about the home devices now widely available.

HRV by Age and Gender: What's Normal for Men vs Women

Mon, 25 May 2026 19:55:44 +0000

Heart-rate variability (HRV) is a measure of the small beat-to-beat variation in your resting heart rate, captured overnight by wearables like the Ring AIR and Ring PRO. Understanding your HRV helps assess autonomic nervous system balance — and a low or steadily declining HRV can signal accumulated stress, poor recovery, or developing cardiovascular risk.

This guide shows median HRV by age decade for both men and women, drawn from over 510,000 Ring users across 77 million nights of sleep, and explains how to read your own number against your gender and age peers.

Cramping But No Period? Here's What It Could Mean

Thu, 21 May 2026 18:50:22 +0000

This article was medically reviewed by Kate Davies RN, BSc (Hons), FP Cert , Vice President Medical Women’s Health & Longevity at Ultrahuman .

Cramps without a period can come from at least six hormonal sources — ovulation pain, an anovulatory cycle, early pregnancy, a hormonal IUD or contraceptive adjustment, a functional ovarian cyst, or endometriosis and adenomyosis.

Many resolve on their own, but a few of these patterns — ectopic pregnancy, ovarian torsion, severe endometriosis — need prompt clinical evaluation rather than waiting. Which one it is depends on when in your cycle the cramping appears, what other symptoms come with it, and your reproductive context (trying to conceive, on contraception, in perimenopause).

HRV Chart By Age: 528,000 Ring Users' Heart Rate Variability Compared

Thu, 21 May 2026 18:24:38 +0000

Heart rate variability (HRV) is one of the core signals wearables like the Ultrahuman Ring use to assess recovery and physiological stress.

HRV is highly individual, but it follows population-level patterns. It typically declines with age, from a median of 47ms in adults in their 20s to around 34ms by the 60s.

Direct comparison against other people isn’t clinically meaningful, but many people want reassurance that their numbers fall within a normal range. This guide provides that orientation and reveals how to read your own HRV properly.

Lowest Calorie Alcohol: Spirits, Beer, Wine Ranked

Wed, 20 May 2026 15:35:56 +0000

Booze isn’t great for the waistline, but there are low-calorie alcohol options out there. A standard drink in the US (known elsewhere as a unit) in the US contains 14 grams of pure alcohol, which packs about 7 calories per gram. This puts a floor of about 98 calories on most single-measure drinks before mixers, sugar, or carbohydrates are added on top.

This guide ranks the most common drinks by calorie content, flags where mixers turn a low-calorie spirit into a 400-calorie problem.

New study reveals that your wearable knows how you slept better than you do

Tue, 19 May 2026 19:21:58 +0000

A new peer-reviewed study using the Ultrahuman Ring AIR has found a striking gap between how people think they sleep and what their body is actually doing.

The study, published this month in the Journal of Circadian Rhythms , was led by Matthew Driller and colleagues, an independent research group that used Ring AIR devices as an objective measure of sleep quality, after validating its accuracy against gold standard sleep-lab devices.

Why sleep consistency is the biggest lever for health you're not using

Tue, 19 May 2026 19:16:06 +0000

For decades, the public health advice on sleep has been a single number: seven to eight hours. But a new study by Ultrahuman , developed with Stanford University’s Snyder Lab, Bangor University’s Hans-Peter Kubis, and La Trobe University’s Driller Lab, suggests that might only be half the story.

The bigger lever might be consistency — going to bed at roughly the same time each night, with the study highlighting potential metabolic benefits that could offer a myriad of health and longevity benefits.

Full circle: Ultrahuman returns to Kickstarter with special Ring PRO bundle

Mon, 04 May 2026 17:47:58 +0000

Ultrahuman is returning to Kickstarter with an exclusive Ring PRO bundle for the community that backed us first.

Four years ago, our original Kickstarter backers championed the Ring AIR and the philosophy behind it — that your health data belongs to you, with no subscription required.

Today, that same community gets special access to the Ultrahuman Ring PRO – our most advanced wearable yet, which boasts the longest battery life on any smart ring – with savings of up to 43%.

Introducing the Ultrahuman Ring PRO: Performance by design

Fri, 27 Feb 2026 22:31:26 +0000

Ultrahuman has unveiled Ring PRO — the third-generation smart ring designed for people who demand more from their wearable devices.

This isn’t a minor refresh. Ring PRO defines what uninterrupted health tracking should actually feel like, with incredible power and performance.

Here’s what’s changed.

Up to 15 days of battery life

Ring PRO delivers up to 15 days of battery life on a single charge. That means fewer charging rituals, fewer interruptions, and more continuity in your sleep, recovery, and movement data.

How BMI and obesity affects sleep

Mon, 26 Jan 2026 17:45:40 +0000

Body mass index (BMI) and obesity are some of the strongest factors affecting sleep, yet many sleep algorithms overlook them.

Elevated BMI can influence how deeply and how long you sleep, especially the all-important “restorative sleep” that helps your body fix itself overnight.

The problem is that poor sleep can create a negative cycle that makes it hard for people to improve their BMI. When you’re not getting enough deep, continuous sleep, recovery, glucose control, and hunger hormones all take a hit. You feel more tired and stressed, crave refined carbs and sugar, and over time, that makes it easier to gain weight or stay at a higher BMI.

Introducing the Respiratory Health PowerPlug for Ultrahuman Ring AIR

Mon, 26 Jan 2026 16:57:16 +0000

Snoring is often treated like a joke in popular culture, but physiologically, it can be an early warning sign that something isn’t right.

Most people are unaware of their snoring patterns, which is why problems escalate silently for years. But research shows that persistent, heavy snoring has real health side effects:

Habitual snorers have a 46% higher stroke risk .
1 in 3 regular snorers may have undiagnosed obstructive sleep apnea .
UK/US users average 40-45 minutes of snoring per night – but most are completely unaware it’s happening.
Women snore less than men, but only by 9 minutes per night on average . However, they routinely under-report snoring, contributing to widespread under-diagnosis.

You can’t fix what you can’t see – but we’re changing that.

The perfect nap length to supercharge your brain and boost alertness

Wed, 21 Jan 2026 21:22:49 +0000

Naps are an underrated yet powerful tool for boosting performance, cognition, mood, and recovery in adults. Short, well-timed naps can provide noticeable benefits – without many downsides. But not all naps are created equal – the length, timing, and even how you wake up matter.

It’s normal to feel sleepy during the afternoon due to the buildup of adenosine, the neurotransmitter that promotes sleep . A quick 20-minute power nap can sharpen your focus, but the wrong nap length can leave you feeling foggy. A study of nap durations found that short naps improved alertness with minimal sleep inertia, while 30-minute naps produced memory-encoding benefits.

Diesel Ultrahuman Ring combines cultural fluency with science-backed insights

Fri, 12 Dec 2025 18:50:40 +0000

Ultrahuman and Diesel have partnered for the Ultrahuman Diesel Ring, an innovative collaboration at the intersection of fashion, culture, and global wellness.

The collaboration combines Ring AIR, the world’s most comfortable smart ring, with Diesel’s inclusivity and cutting-edge cultural fluency.

Designed for all-day comfort and all-night insight, it elevates personal performance without ever compromising on style. Under the creative direction of Glenn Martens, Diesel continues to stretch its boundaries, expanding beyond fashion into technology.

Beat the DST blues: How Daylight Saving Time changes affect your circadian rhythm

Tue, 04 Nov 2025 21:37:40 +0000

The clocks just moved back an hour – and while it looks like a small change, your body clock doesn’t automatically adjust like your smartphone’s.

Your circadian rhythm and natural sleep/wake cycle run on light, temperature, and daily cues – and it takes time to adjust.

That’s why we’ve adjusted the Ring AIR and the Circadian Alignment PowerPlug to mitigate the effects of daylight saving time.

Read on for the science behind DST changes – and how Ultrahuman Ring takes that into account to support better recovery.

Ultrahuman files patent infringement suit against Oura

Mon, 03 Nov 2025 03:06:00 +0000

Update 3 November 2025: The original suit has been reinstated by the Division Bench of the Delhi High Court. This decision reinforces our commitment to protecting our innovations and safeguarding our intellectual property rights. We remain confident in the strength of our patented solutions and look forward to pursuing our claims through the judicial process.

The original version of this story was published on 22 August 2025, it was updated to reflect the reinstatement of the case.

Ultrahuman is here for long

Wed, 22 Oct 2025 09:09:00 +0000

Updated 22 October 2025

We wanted to share an update regarding the recent final determination issued by the U.S. ITC regarding the Ultrahuman / Oura lawsuit.

What this means if you’re in the U.S.

If you own an Ultrahuman Ring AIR in the U.S., you will continue to use it exactly as before – with subscription-free health insights, relentless feature updates, and full warranty support.

What happens after 21 October 2025?

Nothing changes for Ring AIR models purchased on or before 21 October, your data, or your warranty – you remain fully supported.
Retailers may continue selling their existing inventory beyond 21 October.
We can still support customers who purchase their Ring AIR after 21 October 2025 with diagnostics and tech support. Returns will continue to be handled by retailers/resellers.

What’s next for Ultrahuman?

A new ring design is already in development and will launch in the U.S. as soon as possible.
We’re actively seeking clarity on U.S. manufacturing from our Texas facility, which could enable a “Made in USA” Ring AIR in the near future.
We also eagerly await the U.S. Patent and Trademark Office’s review of the validity of Oura’s ‘178 patent , which it acquired in 2023, and is central to the ITC ruling. A decision is expected in December.

Further context

We had previously written about how Oura bought patents recently to sue competitors . While this might help their short-term goals of going public with a nicer story around defensible market share, we believe this is risky behaviour for the long run.

From periods to ovulation: How your uterine cycle speaks in signals

Wed, 08 Oct 2025 13:47:32 +0000

When most people think about the menstrual cycle, they think of periods, ovulation, or conception. But the truth is: your cycle is much more than that. It’s a beautifully complex interaction of anatomy, hormones, and processes – all working together to prepare the body every month.

And here’s something you may not know: the menstrual cycle isn’t a single cycle at all. It’s actually two cycles running side by side – the ovarian cycle and the uterine cycle.

Introducing Vision Cloud: The World's first universal health interpreter

Thu, 02 Oct 2025 18:45:35 +0000

Vision Cloud is the world’s first free universal health interpreter, enabling anyone, anywhere, to upload medical test results and receive clear insights, recommendations, and correlations with their wearable data.

And with Blood Vision now expanding into UAE and Saudi Arabia – with the UK and Australia rolling out in the coming weeks – Ultrahuman is accelerating its mission to make preventive health accessible worldwide.

Together, Vision Cloud, Blood Vision Essentials, and the Blood Vision Annual Plan mark a major step forward in establishing Ultrahuman as the leader in precision diagnostics and actionable health insights.

Accessing the Ultrahuman Partnership API

Fri, 19 Sep 2025 19:55:57 +0000

Ultrahuman’s Partner API enables approved apps to read user-consented data via OAuth 2.0. This page outlines essentials for planning and implementation.

You can read the full documentation for OAuth and API implementation here .

How it works

User signs in and approves requested scopes.
Your app receives an authorization code.
Your server exchanges the code for an access token and a refresh token.
Call Partner endpoints with Authorization: Bearer ACCESS_TOKEN.
When the access token expires (about one week), refresh and continue.

Prerequisites

Client ID and Client Secret (partner onboarding)
Redirect URI (must exactly match the registered value)
Base URL https://partner.ultrahuman.com
Scopes ring_data, cgm_data, profile (request only what you need)

Available data

Access depends on user consent and scopes.

Sympathetic vs parasympathetic – your guide to everyday balance

Thu, 18 Sep 2025 17:50:15 +0000

If stress, poor sleep, or over-training keep you wired, look at your autonomic nervous system (ANS). ANS balance – the push-pull of sympathetic and parasympathetic activity – drives recovery, focus, and long-term health.

Every heartbeat, breath, and moment of calm or stress you feel is orchestrated by an invisible conductor: the autonomic nervous system (ANS). It runs quietly in the background, but its balance determines how well you recover, perform, and thrive.

How to connect Ultrahuman and Clue for biometric cycle tracking

Mon, 15 Sep 2025 18:53:49 +0000

Understanding your menstrual cycle is a window into your overall well-being, energy, mood, and reproductive health. That’s why Ultrahuman has partnered with Clue to enable users to sync their period data for deeper analysis.

Navigating the complexities of the menstrual cycle — where the four stages can have a huge impact on everything from energy levels to mood and resilience — is key to better self-understanding. Cycle tracking is a powerful tool for understanding the intricate dance of hormones and how they affect your overall well-being.

Ultrahuman and Clue partner for smarter, more integrated biomarker-based cycle tracking

Mon, 15 Sep 2025 18:52:01 +0000

Ultrahuman, a global leader in wearable health technology, has partnered with Clue, the #1 women-led period and cycle tracker, to provide women with a more seamless and affordable way to understand their bodies.

As part of the partnership, every purchase of the Ultrahuman Ring AIR now includes a full year of Clue Plus for $9.99 – reduced from $39.99 .

Clue Plus unlocks personalized cycle tracking, deeper analysis, advanced predictions, hormone insights, and features designed for pregnancy, perimenopause, and more. It also provides extended 12-month forecasting and expert-backed guidance from clinicians to help users better understand their bodies.

Why 3 AM stress destroys your sleep – and how to combat it

Fri, 12 Sep 2025 20:37:44 +0000

Your body isn’t equally equipped to handle stress at every hour of the day. The worst time to experience stress is at night, when your circadian system is tuned for rest and recovery.

While daytime stress can sharpen your focus and enhance performance, the same physiological response at night disrupts sleep quality and undermines next-day resilience.

In the evening, the body gradually begins its wind-down process. The level of melatonin, the “slow down” hormone, rises.

Why you crave chocolate on your period and truth behind hunger and your cycle

Tue, 09 Sep 2025 13:03:32 +0000

Cycle syncing – eating in tune with the phases of your menstrual cycle – is everywhere right now.

The idea is that hormones shape what and how much you eat, and that nutrition should adjust in response. Some of that is backed by research, some less so.

Hunger really does rise before your period, thanks to progesterone boosting energy needs in the luteal phase.

But research indicates that chocolate cravings seem to be more cultural habit than hormonal destiny.

How the timing of stress can protect your health and help you stay productive

Fri, 05 Sep 2025 20:16:30 +0000

Contrary to what many believe, stress isn’t bad. Stress is a part of life, and helps us perform when we need to.

The circadian rhythm, your body’s 24-hour biological clock, determines how resilient or vulnerable you are to stress at different times of day. A burst of stress at midday can sharpen your focus, but late at night, it can derail sleep and recovery and start to affect your health.

Introducing Blood Vision Essential

Mon, 18 Aug 2025 15:27:59 +0000

We all have our go-to self-care rituals.
The skincare essentials, the herbal teas, and the wellness snacks.

They feel good in the moment but don’t reveal what’s happening beneath the surface.

That’s where Blood Vision Essential comes in.
For $99 every 6 months, you get one core test that shines a light on the big questions: disease risk, heart health, blood sugar control, and more. Here’s what’s included:

60+ biomarkers across 8 health panels:

Introducing Cycle & Ovulation Pro: Best-in class ovulation tracking for all cycles

Fri, 15 Aug 2025 21:29:38 +0000

Ultrahuman, a global leader in wearable health technology, today announced its acquisition of viO HealthTech and the launch of Cycle & Ovulation Pro for Ultrahuman Ring AIR.

Rolling out now in the USA, UK, EU, Australia, and Canada as a groundbreaking new plug-in for Ultrahuman Ring AIR, Cycle & Ovulation Pro boasts best-in-class 90%+ accuracy for ovulation confirmation.

Most menstrual tracking platforms are built for women with regular 28-day cycles. In reality, the majority have diverse cycle patterns – and those with conditions like non-bleeding, PCOS, endometriosis or thyroid disorders often don’t get an accurate or supportive experience. Ultrahuman’s acquisition of viO is designed for them.

Why you should delay your first coffee by 90 minutes

Fri, 01 Aug 2025 20:34:31 +0000

You probably reach for coffee within minutes of waking up — almost on autopilot. But that early cup might be dulling its benefits and working against your energy later in the day.

According to emerging research in circadian biology and neuroscience, waiting about 90 minutes before having caffeine can improve focus, mood, and nighttime sleep quality. It’s not about giving up your morning brew — just about timing it to align with your body’s natural cortisol rhythm. Here’s what the science says.

How Blood Vision and Ultrahuman Ring AIR sparked two life-changing health shifts

Fri, 18 Jul 2025 16:24:51 +0000

Ultrahuman Ring AIR can show you when something’s off – and now Blood Vision can tell you why. When combined, they offer a powerful new way to prevent illness early, guide targeted action, and track improvements.

All too often, we wait for symptoms to appear before taking action. But research shows that preventive action improves health outcomes .

In the two real-world stories below, Blood Vision and Ultrahuman Ring AIR are used in different ways. The first proactively spots an emerging condition, and the second reacts to subtle changes in biometric data that reveal an underlying issue.

Introducing Blood Vision: At-home testing for 100+ biomarkers now in the US

Tue, 15 Jul 2025 20:43:57 +0000

When it comes to our health, we wait for symptoms. But most chronic conditions begin with no obvious signs. Subtle shifts in energy, stress, sleep, or recovery often appear first but rarely get investigated.

Blood Vision, Ultrahuman’s revolutionary preventive blood testing platform, available both at home and at a clinic, is now live in the US.

Unlike traditional blood testing services that offer static snapshots, Blood Vision combines deep biomarker analysis with real-time wearable data. What’s more, it includes a second follow-up test, so you can see the effect of changes on your health.

Ultrahuman Early Summer Release Sprint ‘25

Fri, 13 Jun 2025 23:10:50 +0000

Ultrahuman’s Early Summer Release Sprint saw a wave of new capabilities, upgrades, and enhancements designed to make your Ultrahuman experience more insightful than ever.

This sprint represented a unique moment in our development cycle – a focused period where our product, engineering, design, science, and performance teams came together with a singular purpose: to reimagine what’s possible.

It was the culmination of months of experimentation, iteration, and cross-functional collaboration.

Each release showcases a new capability, insight, or experience. Read about them all below:

Introducing Caffeine Window upgrade: Now with real-time tracking and logging

Fri, 13 Jun 2025 23:06:26 +0000

Your favorite Ultrahuman feature just got smarter. Caffeine Window, one of the most-loved features in the Ultrahuman community, is levelling up.

As part of our Early Summer Release Sprint , we’re introducing an upgraded Caffeine Window. Now, it’s personal with effortless tagging, real-time body caffeine levels, adaptable cut-off times, and detox advice.

You asked. We built it. Here’s what’s new.

UltraSync with Tesla PowerPlug: Sync your mind, body and car

Thu, 12 Jun 2025 20:00:30 +0000

Your Tesla now understands more than the road – it understands you.

The UltraSync with Tesla PowerPlug connects your Ultrahuman Ring AIR with your car, syncing sleep quality and recovery data with real-time driving behavior.

Whether it’s your morning commute or late-night highway miles, the UltraSync with Tesla PowerPlug translates your health markers into actionable insights, helping you manage stress, avoid fatigue, and build safer habits behind the wheel.

UltraSync with Tesla brings a health-first perspective to your driving experience, with your health data staying private and never shared with Tesla.

Sleep Algorithm 2.0 explained: Personalized sleep scoring

Wed, 11 Jun 2025 22:14:00 +0000

The way you sleep is hugely personal, and the quality of your rest is affected by your age, sex, and BMI.

To understand the unique architecture of sleep, there’s no one-size-fits-all approach. The Ultrahuman Sleep Algorithm 2.0 is a massive leap forward and offers the most personalized and intelligent sleep tracking.

Sleep Algorithm 2.0 uses advanced machine learning algorithms, validated by over 125,000 nights of Ring AIR sleep data, to understand how your age, sex, and body composition uniquely shape your rest.

Introducing Ultra Age: A new marker for biological aging

Tue, 10 Jun 2025 22:33:14 +0000

Age is way more than just a number. Lifestyle and genetics can speed or slow biological aging, and understanding this can help you make meaningful differences to your health.

That’s the science behind Ultra Age, a unique and revolutionary combination of biomarkers that offer a window into how your body is aging. It combines sleep, cardiovascular signals, and blood markers into a single, trackable insight that offers the deepest possible look at your health.

Introducing Brain Waste Clearance: A new marker for brain recovery

Mon, 09 Jun 2025 19:33:35 +0000

The brain has its own way of recovering during sleep, and it goes well beyond rest. One of the most important processes that takes place while we sleep is the removal of waste from the brain.

This process, called glymphatic clearance, plays a key role in brain health, recovery, and long-term cognitive function.

Now, with the Ultrahuman Ring AIR, users can access a new signal, Brain Waste Clearance, that estimates how effectively this recovery process is likely taking place.

Ultrahuman and GEM SLEEP partner for sleep apnea sufferers

Mon, 09 Jun 2025 11:37:29 +0000

Ultrahuman has joined forces with GEM SLEEP to help more people with obstructive sleep apnea (OSA) understand, manage, and improve their sleep.

By bringing together GEM SLEEP’s diagnostic & therapy expertise and Ultrahuman’s precision tracking platform, this partnership offers a smarter, more supportive way to manage sleep apnea – one that gives people the tools – and the data – to take control of their sleep, health, and long-term well-being.

Introducing New Parent PowerPlug

Sun, 08 Jun 2025 17:52:47 +0000

Those first months as a parent are an incredibly special time. However, sleep can become a scarce commodity. Some parents have it worse than others, but most will go through a period of rough sleep at some point in the first year.

Sleep deprivation from multiple awakenings can affect mood, cognitive performance, and energy levels, just when you need those things the most.

The New Parent PowerPlug tweaks the Ultrahuman Ring AIR’s sleep score and recovery algorithms to account for disrupted and irregular sleep patterns. The aim is to help new parents get a true picture of their sleep duration and make informed decisions to boost recovery and reduce sleep debt.

Introducing Smart Tags: Context meets health

Sat, 07 Jun 2025 22:22:12 +0000

Context is everything when it comes to understanding your sleep, recovery, and overall health. Accurate data is powerful, but knowing why your biomarkers have changed is where real insight begins.

That’s why Ultrahuman created Smart Tags – a simple, powerful way to add meaningful context to your sleep and recovery data.

What are Smart Tags?

Smart Tags help you connect the dots between your habits and your health. They’re a way to annotate your Ultrahuman Ring AIR data with real-life context and start to build a deeper understanding of your body.

Ultrahuman Home is live: Introducing the future of healthy living

Fri, 06 Jun 2025 20:15:56 +0000

Ultrahuman Home is a revolutionary home health device, designed to transform the spaces you and your loved ones spend the most time in.

It continuously monitors key environmental factors like light, air quality, humidity, and noise. It offers personalized, data-driven recommendations to help you actively improve the health and quality of your surroundings.

Ultrahuman Home uses UltraSync™ technology, which provides a unique relationship with the Ultrahuman Ring AIR, to analyze how temperature, light, and noise within your spaces affect your sleep and recovery.

Ultrahuman Ring AIR battery life: How to unlock 35% longer battery

Thu, 05 Jun 2025 12:01:08 +0000

The Ultrahuman Ring AIR battery life should be between 4-6 days, depending on use, but there are many ways to slow battery drain.

Long battery life enables better tracking. When you don’t need to take your ring off to charge, it means fewer gaps in your data. It’s one reason why people are shifting to smart rings to monitor their health and fitness.

Here’s everything you need to know about maximizing your Ultrahuman Ring AIR battery and protecting it for the future.

Find your ideal size using the Ultrahuman Ring sizing kit

Thu, 05 Jun 2025 11:12:53 +0000

Finding the perfect fit is the key to unlocking the full potential of your Ultrahuman Ring AIR. Our specially designed sizing kit ensures you experience unmatched comfort and precise data accuracy, day and night.

The sizing kit includes ten carefully crafted sample rings, each tailored to help you identify your ideal size. Using this sizing kit before choosing your Ultrahuman Ring is crucial. The Ultrahuman Ring AIR sizes differ from standard market sizes and other smart rings.

Is waking before 5 AM actually good for you?

Thu, 05 Jun 2025 10:40:18 +0000

Waking before 5 AM is often framed as a badge of discipline and boasted about by CEOs in self-help podcasts, but it may be more disruptive than productive.

Human circadian rhythms are biologically programmed for a natural wake time closer to sunrise.

Regularly rising in the pre-dawn hours can misalign your internal clock, especially if you’re not consistently sleeping early enough to compensate.

What’s more, circadian misalignment has been linked to increased risk of metabolic dysfunction, mood disorders, and cardiovascular problems.

RMSSD vs SDNN: HRV metrics explained

Wed, 04 Jun 2025 23:08:22 +0000

For anyone interested in their health and fitness, heart rate variability (HRV) matters: in basic terms, it measures the variation in time between your heartbeats and how those timings fluctuate slightly, by fractions of a second.

HRV can tell you a lot about your heart, and your overall health. It’s a potential indicator of issues such as heart disease and cognitive decline, but it can also show how adaptable and able to cope with stress your heart is, whether you’re exercising or resting. Higher is usually better, showing a more dynamic and capable cardiovascular system.

Ultrahuman and Optimity partner for Ring AIR savings

Mon, 02 Jun 2025 12:41:52 +0000

Ultrahuman has partnered with Optimity, enabling users to redeem reward points for savings on the Ring AIR.

Optimity incentivizes physical activity by offering financial rewards — a key motivator in the fight against rising metabolic disorders like Type 2 diabetes.

Members earn points for steps and other healthy habits, which can be redeemed for gift cards and other incentives. Now, the Ultrahuman Ring AIR is part of the program.

Users can earn points by tracking steps with the Ring AIR, and in future, additional rewards could be available for sleep and metabolic health metrics.

How to connect Ultrahuman Ring AIR and Apple Health

Fri, 30 May 2025 19:22:34 +0000

Your Ultrahuman Ring AIR is compatible with Apple Health, which means that data syncs between the two platforms.

The Apple Healthkit integration means that datapoints such as heart rate variability, temperature or energy expenditure, which are tracked by the Ultrahuman Ring AIR, can be found within the Apple Health app. This data can then be read by other apps, which can surface your Ultrahuman Ring AIR data in new and exciting ways.

Shift Work PowerPlug: How to manage irregular sleep patterns

Fri, 30 May 2025 14:03:11 +0000

Shift work disrupts your natural body clock, requiring you to sleep and wake at times that conflict with your circadian rhythm. This irregular pattern can impair cognitive function and decision-making, affect emotional regulation, and impact cardiovascular and metabolic health in the long term.

Sleeping at unconventional hours is often underrepresented in traditional tracking, leading to a disconnect between what’s actually happening in the body and what shows up in your data.

Age and sleep: How to use sleep as an anti-aging power-up

Wed, 28 May 2025 21:46:02 +0000

Sleep is deeply personal, but one factor affects everyone: age.

As we age, we spend less time in deep and REM sleep stages. Light sleep creeps in to fill the gaps but is less restorative. That’s why older adults often feel tired despite logging a full night in bed.

In this article, we look at what changes in our sleep architecture as we age, and what we can do to make the most of it.

Troubleshooting gaps in your HR, temperature or HRV

Thu, 15 May 2025 15:43:19 +0000

If your Ultrahuman Ring AIR data shows gaps in HR, temperature, or HRV the issue is usually physical, not technical. Here’s a breakdown of common causes and what you can do about them.

Your ring was too loose. You can try wearing it on a different finger

Cause: A loose ring can lose contact with your skin during sleep, interrupting data collection.
Fix: Wear the ring on a finger where it fits snugly — ideally one where it doesn’t rotate or shift while you sleep.

Introducing: Cycle and Ovulation algo 2.0

Sun, 11 May 2025 14:27:13 +0000

We launched the Cycle and Ovulation PowerPlug in November 2024, and the response has been awe-inspiring.

Hundreds of thousands of women use Ultrahuman’s Cycle and Ovulation PowerPlug to take control of their health and fertility tracking, totally subscription-free.

The feedback from our community has been incredible, and we’ve listened. That’s why, just six months after its launch, we’re back with a major update that makes the Cycle and Ovulation algorithm 2.0 more accurate and adaptive.

So what’s the patent that Oura is suing everyone for?

Wed, 07 May 2025 21:55:30 +0000

You might have come across news about a legal case involving Oura and several smart ring companies — including us at Ultrahuman.

It’s easy to assume that this is the classic tale of a lone innovator protecting a breakthrough while new entrants simply imitate.

But here’s the twist: the patent at the center of Oura’s International Trade Commission (ITC) case—US 11,868,178—was only issued on 9 January 2024, based on an application filed on 24 May, 2023. Just 63 days after the patent issued, on 13 March 2024, Oura filed its ITC complaint (Inv. No. 337-TA-1398) against nearly every smart-ring competitor, including Ultrahuman. And what’s more, this is not a “home-grown” Oura patent - Oura acquired the patent family from another company in 2023 (Proxy), who themselves acquired it from yet another company in 2020 (Motiv).

Introducing Cycle Aware Recovery

Wed, 07 May 2025 19:09:30 +0000

Recovery isn’t constant across the menstrual cycle, and your metrics should reflect that. That’s why we’ve rolled out the Cycle Aware Recovery update, which brings deeper context to how recovery is presented across the menstrual cycle.

Adjusting recovery scores post-ovulation to seem “cycle-sensitive” hides the impact of increased body temperature. At Ultrahuman we’ve chosen accuracy over optics, offering a more honest reflection of what your body is truly experiencing.

Read on to understand this big update and the science behind it.

Introducing Chill Mode: Extend your Ring AIR battery life

Mon, 05 May 2025 12:52:56 +0000

Chill Mode is a new smart power management system built to enhance battery usage and efficiency.

The new default battery setting on Ultrahuman Ring AIR, Chill Mode is designed to intelligently manage power while preserving the accuracy of your health data. It extends your Ring AIR battery life by up to 35% by tracking only what matters, when it matters.

Chill Mode uses motion and context-based intelligence to track heart rate and temperature primarily during sleep and rest.

How the Ultrahuman Ring AIR tracks skin temperature

Wed, 30 Apr 2025 15:00:58 +0000

Skin temperature is a key biomarker that fluctuates based on circadian rhythms, hormonal changes, and overall physiological health. It’s a core signal and a window into sleep, recovery, wellness, and illness.

The Ultrahuman Ring AIR tracks skin temperature during sleep and compares it to established individual baselines to help users understand their body.

In this article, we’ll explore how skin temperature tracking works on the Ultrahuman Ring AIR, what the data reveals, and how to use these insights to optimize recovery and well-being.

The Ultrahuman Ring AIR smart ring is HSA/FSA eligible

Mon, 28 Apr 2025 15:40:01 +0000

The Ultrahuman Ring AIR health-tracking smart ring is eligible for purchase with HSA/FSA funds – enabling US shoppers to save on the fitness tracker.

As an advanced sleep, fitness, and heart rate monitoring wearable, the Ultrahuman Ring AIR fitness tracker is FSA/HSA eligible to purchase for yourself or members of your family.

What’s more, the Cardio Adaptability PowerPlug, and Voyager Ring Charger are also eligible for FSA/HSA.

Below, we explain how the HSA/FSA works and how to save money on your next smart ring.

Introducing Nap Detection V2: Find your unique rest signature

Fri, 11 Apr 2025 13:20:49 +0000

Nap detection is crucial for understanding your body’s recovery patterns – whether you’re catching up on sleep debt, recharging after an intense workout, or maintaining energy through strategic rest.

Accurately detecting these restorative moments helps move from just data to actionable health insights that are tuned to your physiology in real-time.

Our new ML-based algorithm, trained on over 1 million de-identified and anonymous naps, now detects naps with even greater precision. Every recovery insight you receive is now more reliable than ever before.

Ultrahuman free Cycle and Ovulation PowerPlug explained

Fri, 04 Apr 2025 17:06:28 +0000

Understanding your menstrual cycle is a window into your overall well-being, energy, mood, and reproductive health. That’s why Ultrahuman developed the Cycle and Ovulation PowerPlug.

Available to all Ultrahuman Ring AIR users at no extra cost, the Ultrahuman Cycle and Ovulation PowerPlug uses unique biomarkers, such as skin temperature, HRV and RHR to calculate your cycle phases. It will predict a 7-day fertile window and pinpoint ovulation day with precision.

Sleepmaxxing: The evidence behind the TikTok trend

Wed, 26 Mar 2025 18:56:05 +0000

Sleepmaxxing has become a huge TikTok trend, amassing over 100 million posts on the platform . But what is sleepmaxxing? Aimed primarily at Gen Z, sleepmaxxing TikTokers share tips and hacks for better sleep.

The trend is fueled by the immense longevity benefits of good sleep and the perceived beauty enhancements. Many sleepmaxxing techniques on TikTok are popular because they’re designed to boost everything from facial symmetry and jaw alignment to physical and mental recovery.

The four phases of the menstrual cycle: How you might feel

Thu, 20 Mar 2025 16:03:13 +0000

This article was medically reviewed by Kate Davies RN BSc, Vice President, Medical Women’s Health & Longevity at Ultrahuman .

The four stages of the menstrual cycle form the basis of a woman’s life, and living in tune with them can help master fertility, energy levels, and mood.

The cycle has important ramifications for a woman’s health, lifestyle, and career. When you know how to interpret your body’s cues, you can make informed decisions about reproductive health, fitness, and productivity. What’s more, understanding the menstrual cycle can decode the onset of menopause, or conditions such as PCOS, endometriosis, or even cancers.

Blue light-blocking glasses explained: The evidence for sleep gains explained

Wed, 19 Mar 2025 18:11:38 +0000

The impact of blue light on our circadian rhythm is well-studied, and there’s plenty of evidence that exposure can disrupt sleep quality and increase stress levels. That’s led to the rise of blue light-blocking glasses – but are they worth it?

Blue light waves disrupt our natural circadian rhythm , which has been linked to poor sleep , metabolic health issues , and reduced cognitive performance.

But wearing dark-tinted blue-light filtering glasses, which block 80–100% of blue light, and using them for 2–3 hours before bedtime, can help mitigate these effects.

New study reveals on-going benefits of blue light blocking glasses

Fri, 14 Mar 2025 15:37:57 +0000

New Ultrahuman study indicates that blue light-blocking glasses could have longer-term benefits.
RHR remained stable in users after they ceased using BLBG.
Sleep scores were also more consistent throughout the study — and beyond.

The benefits of blue light-blocking glasses on sleep, stress, and heart rate could last longer than previously thought — according to a new study by Ultrahuman.

Blue light emitted from technology such as phones, TVs, and laptops is unavoidable in modern life. However, studies have shown that the wavelengths emitted by these devices negatively affect sleep patterns.

Sleep smarter with Ramadan Mode on Ultrahuman Ring AIR

Wed, 26 Feb 2025 19:05:36 +0000

Ramadan brings unique routines, with pre-dawn meals (Suhoor) and late-night prayers (Taraweeh) leading to altered sleep patterns and an accumulation of “sleep debt.”

During Ramadan, the early starts and late evenings can lead to chronic sleep deprivation. Sleep “debt” refers to an accumulated loss of sleep over an extended period, and research has shown sleep “debt” impairs cognitive function and reduces energy levels.

Sleep Debt During Ramadan

Last year, Ultrahuman introduced Ramadan Mode , which formed the basis of an eight-week Ramadan Sleep Debt Study . The aim was to understand users’ sleep patterns during the fasting month.

2024 Ultrahuman Holiday Update

Wed, 11 Dec 2024 17:20:00 +0000

This Holiday Update brings our most exciting product upgrade, from game-changing new features, a whole new edge ML based firmware and a little holiday refresh of the app UI. Let’s dive right in!

Smart Alarm: Wake Up at Your Best

Smart Alarm is here finally! Inspired by your demand for a better wake up experience, we’re excited to introduce the Smart Alarm PowerPlug. It syncs with your sleep cycles, gently waking you up during light sleep, with wake-up tunes crafted with sleep and music science — ensuring the perfect start to your day.

Refer or gift your friends the Ring AIR

Wed, 12 Jun 2024 01:37:43 +0000

Use your unique invite link to refer friends and give them a 10% discount (that’s ₹2,850) on their first Ultrahuman Ring AIR purchase.

Special instructions

Ensure you have updated to the latest version of the app from the App Store or Play Store for the best-referring experience.
The referral discount cannot be combined with any other offer.

During active campaigns

During an active referral campaign period, successful referrals will earn you exclusive rewards depending on the number of successful referrals.

How to fix inaccurate glucose readings?

Wed, 12 Jun 2024 01:11:00 +0000

If you feel that your sensor is reporting wrong glucose values even after two days of activation, then your sensor cannot calibrate properly. In this case please reach out to us via the “Troubleshoot” option at the bottom of the Metabolism tab on our app so that we can provide you with further assistance.

How to optimise foods with low food scores?

Wed, 12 Jun 2024 00:57:27 +0000

Foods that give you a high glucose spike and keep your glucose levels outside the target range (70-110 mg/dL) get a lower food score. These tips will help you to optimize these foods:

Walk after a meal

Walking for at least 10-15 minutes after a meal is shown to reduce your glucose spikes post a meal. Since walking relies on aerobic metabolism, which draws upon glucose in combination with fatty acids and protein in the body, you burn glucose at a moderate rate to curb a spike in glucose production without triggering its production further.

How is your metabolic score calculated?

Wed, 12 Jun 2024 00:39:01 +0000

Metabolic Score (ranging from a scale of 0-100) is an indicator of your overall metabolic health. It is a factor of your food consumption, activities performed, stress levels, and quality of sleep.

It depends on three factors:

Glucose variability

Glucose variability is the ups and downs present in your glucose levels graph. A low variability indicates that you have a stable glucose trend which is an indicator of good metabolic health. A high variability depicts that your body is subjected to high glucose spikes and crashes which might be the reason for laziness and lethargy that you feel after a high carbohydrate meal.

Understanding your first glucose spike: Optimizing blood glucose response for better metabolic health

Wed, 12 Jun 2024 00:32:15 +0000

Some foods spike and crash your blood glucose and hence reduce your metabolic score. This doesn’t necessarily mean that these foods are bad and need to be avoided.

Ways to optimise your glucose spike

Get Movin’: Go for a walk or do light physical activity to help dispose of excess glucose post-spike.
Portion control: In case you ate a large portion of the meal, try with a slightly reduced portion size next time.
Food sequence: Eat fibres, fats, proteins, carbs, and simple sugars in this order. This creates a hypercompensation effect and helps improve your response to meals.

Understanding and managing hyperglycemia

Wed, 12 Jun 2024 00:04:30 +0000

Hyperglycemia is blood glucose greater than 120 mg/dL while fasting or postprandial (after food consumption).

Causes of glucose spikes

Food had a high Glycaemic Index (GI) i.e, it included more simple sugars and carbs
Coffee intake leads to an increase in stress hormones that lead to a glucose spike
High level of stress in the body in general due to external stressors
Lack of sleep

In case the meal that spiked glucose has a combination of 2-3 individual food items, you would need to test out each one of them / a suspect food that spikes your glucose again and again.

Understanding and managing your average glucose levels

Tue, 11 Jun 2024 23:59:01 +0000

How is average glucose calculated?

Average Glucose is calculated from all the glucose data points for that day. This single metric provides you with a holistic view of how your glucose levels were throughout the day.

Maintaining optimal average glucose

In general, 100 mg/dL is considered to be the max optimal value for average glucose. So whenever you exceed this threshold for a single day, you’ll get a nudge on the Ultrahuman app. It’s possible to experience high average glucose when you are consuming more carbs or simple sugars than what your body can utilize optimally.

How to optimize high crash foods for better metabolic health

Tue, 11 Jun 2024 23:50:39 +0000

Understanding high crash foods

High-crash foods give you a steep glucose crash, which is not good for your metabolic health. These crashes can lead to subsequent hunger and overfeeding and/or cause lethargy.

Strategies to optimize high crash foods

Add more complex carbs to your meal: Complex carbs could include whole food grains like quinoa, buckwheat and whole wheat items. These do not spike your glucose.
Add more fibre and protein to your meal. This creates the hypercompensation effect that smoothens the glucose response curve.
Fermented foods: Fermented foods like sourdough bread might have a slightly better glucose response than their non-fermented versions.
Hack: Drinking 1 tbsp of apple cider vinegar pre-meal will smoothen the glucose crash
The sequence of foods sorted by a lower probability of crash responses is → Fiber > Protein > Carbs > Simple Sugar. Eat your meals in the above sequence to improve the glucose response.

Glucose Sensor Equilibration: What to expect in the first 24 hours

Tue, 11 Jun 2024 22:01:13 +0000

Introduction to Glucose Sensor Equilibration

Soon after the glucose sensor is inserted, physiological processes occur as the glucose sensor and the body equilibrates. These processes are part of the body’s natural response to glucose sensor insertion.

Why equilibration affects sensor accuracy

The equilibration process can vary from one person to another and may not always happen in the same manner for any one person. During this equilibration process, the sensor values are inaccurate; hence we don’t show them on the app.

Why can glucose readings be unreliable in the first 24 hours?

Tue, 11 Jun 2024 21:24:22 +0000

Some sensors, even after warming up post 1 hour of activation, still need calibration. On average, it takes around 24 hours for the sensor to be calibrated. After which it can report correct glucose values.

This is due to the fact that soon after the insertion of the glucose sensor, physiological processes occur as the glucose sensor and the body equilibrate. These processes are part of the body’s natural response to glucose sensor insertion. The equilibration process can vary from one person to another and may not always happen in the same manner for any one person.

All you need to know about the ring sizing kit

Tue, 11 Jun 2024 20:57:21 +0000

Which finger should I wear the ring on?

☝🏽 We recommend either your index, middle, or ring finger for the Ultrahuman Ring.

How do I know if the ring fits properly?

🦾 The fit should be snug (not too tight or too loose). A few simple ways to assess this — If you rotate the ring on your finger, it should not rotate freely. To take the ring off, you must push the bottom of the ring from below and then slide it out. Pro tip: Wear the ring overnight to ensure you’re completely comfortable with it.

How to replace your M1 sensor

Tue, 11 Jun 2024 20:56:39 +0000

Video tutorial and steps

Here are the steps to replace your patch and sensor:

Step 1: Peel off the Ultrahuman Patch, if you have it on.

Step 2: Gently start peeling off your sensor, starting from the edges, until it comes off.

If you are having difficulty peeling off a sensor, you can loosen it by applying vegetable oil or baby oil to the adhesive present on the edges of the sensor, 10 minutes before removing the sensor.

Getting started with the Ultrahuman Ring AIR: Onboarding guide

Tue, 11 Jun 2024 20:56:01 +0000

Below are the steps to get started with the Ultrahuman Ring AIR.

Quick Start Guide

Step 1:

⚡ Charge your Ring for at least 30 minutes before using it for the first time. Place your ring on the charger (align the flat side of the ring with the flat side of the charger) connected to a power source, and the LED light on the charger will start blinking in white, indicating that your ring is now charging.

Ultrahuman Ring AIR FAQs: Everything you need to know

Tue, 11 Jun 2024 20:55:19 +0000

About trade-in

Will my UltrahumanX membership still apply if I trade in my ring?

✅ Absolutely! Your UltrahumanX membership will continue to include benefits for accidental loss or theft, even after the trade-in.

How does the trade-in process work?

✅ While you are making the trade-in, you’ll pay the full price upfront. We’ll record all the necessary details, including the trade-in variant, at our end.

✅ As the next step, we will ship the Ultrahuman Ring AIR in a month.

Everything you need to know about the Ultrahuman M1

Tue, 11 Jun 2024 20:54:10 +0000

Ultrahuman is a holistic fitness app with the goal to make fitness more personalized. With the latest addition to our arsenal, Ultrahuman M1, we are on a mission to solve the metabolic health crisis using Continuous Glucose Monitoring and the Ultrahuman App.

Understand your metabolism

⚙ Understand how food, stress, and activities affect your metabolism. Get metabolic health scores, reports and real-time nudges to improve your metabolism.

Glucose Variability

💯 Maintain your glucose variability within the set target range and receive a daily metabolic score indicative of your metabolic health.

Ultrahuman M1 Live (USA) : Your top FAQs answered

Tue, 11 Jun 2024 20:52:53 +0000

You can purchase your desired Ultrahuman M1 Live Glucose Tracking plan via the Ultrahuman app or website. After payment, you’ll be redirected to fill out a mandatory medical consultation form which asks you a few questions about medical conditions, allergies, etc. This form is forwarded to our tele-health partners who are licensed in your state to approve the use of Continuous Glucose Monitors (CGM) through a prescription. This prescription is issued to you free of any charge.

How to activate your Ultrahuman Premium subscription

Tue, 11 Jun 2024 20:52:09 +0000

Download the Ultrahuman App from the link here
When you launch the app, you’ll be taken through a brief onboarding flow
At the end of the onboarding flow, a subscription page will pop up. You can go ahead and close that by clicking the cross on the top left
For iOS - Go to the ‘Metabolism’ tab (bottom right) > Settings (top right) > Sign up & Login > Login (using Apple, Gmail or Facebook ID)
Note - If logging in through Apple ID, please select the option ‘Share my email’
For Android - Click on ‘Menu’ button (top right) > Settings > Login (using Gmail or Facebook ID)
In case of any issues with the access, please email: feedback@ultrahuman.com

For iPhone users

Leveraging the power of wearables to span the spectrum of sleep apnea treatment: from early diagnosis to follow-up care

Mon, 03 Jun 2024 18:14:55 +0000

Sleep isn’t just about feeling well-rested; it is actually a vital time for your body to repair itself from head to toe. Sleep has been preserved across all species and is important for your very survival. Getting enough sleep helps the brain develop and remember things, keeps the immune system strong to fight off illness, and regulates metabolism. Conversely, not getting enough sleep has been linked to a whole host of health problems, from heart disease and diabetes to mental health conditions like depression.

Exploring the Role of Wearables in Intensive Outpatient Monitoring for Eating Disorders

Mon, 20 May 2024 18:33:55 +0000

Within Health and Ultrahuman

Eating disorders have the highest mortality rates for any mental illness 1, affecting approximately 9% of the population in the USA in their lifetime, according to Statistica.com, or roughly 30 million people in the United States alone. According to Statistica.com, or roughly 30 million people in the United States alone 2. Eating disorders can have both physiological and psychological consequences on the individuals suffering from them. The complexity of eating disorders can have short and long-term impacts on not only the individual but those around them. Apart from the loss in productivity, the physiology of the condition wreaks havoc on a person’s metabolism while actively engaging in eating disorder behaviors. The residual impact can also complicate the after treatment and rehabilitation process. For instance, a 2019 study showed that weight restored women with Anorexia seem to display insulin resistance and higher glucose levels in an OGTT test 3. These features remain latent and do not become overt, but nevertheless point to the fact that inflammation is still high. Many grapple daily with managing diabetes and binge eating at the same time 4 .

Introducing Ultrahuman Home. The future of healthy living.

Tue, 09 Jan 2024 22:05:14 +0000

Ultrahuman Home is a silent and power-packed home health monitor that helps you optimize your living space by monitoring daily markers that affect your health. The sleek yet powerful device provides insights on an individual’s external environment including exposure to artificial light, air quality, humidity and noise levels. Personalizing or changing these markers’ basis recommendations from the Ultrahuman home platform will help improve the passive factors that affect your health. Passive markers like PM, CO2 and temperature are important because of their impact on health compounds over time.

Ultrahuman introduces groundbreaking pregnancy insights on the Ring AIR

Fri, 29 Dec 2023 14:20:34 +0000

Pregnancy is a remarkable biological phenomenon that exemplifies the intricate dance of cellular and hormonal orchestration, initiating new life. Hormonal interplay, particularly involving human chorionic gonadotropin (hCG), progesterone, and estrogen, regulates the delicate balance necessary for a successful pregnancy. This interplay causes biomarkers to vary due to physiological demands.

With Ultrahuman Ring AIR, expecting mothers can look deeper into their Heart Rate (HR), Heart Rate Variability (HRV), Temperature, and Resting Heart Rate (RHR), tailored to the specific trimester of their pregnancy journey.

Ultrahuman iOS releases in 2023

Wed, 27 Dec 2023 20:11:13 +0000

As the year comes to a close, stay updated with the latest software and firmware updates for your Ultrahuman app and ring. For Apple users, the updated Ultrahuman App is available in the App Store and is compatible with iOS devices on Apple iOS 14 and above. Android users can access Ultrahuman on Android 6.0 or higher with Google Play, and remember, Bluetooth 4.0 compatibility is key.

Here’s a yearly round-up of the latest updates with release notes that are always fresh, informative, and ready for you below.

Caring for your Ultrahuman Ring — A comprehensive guide

Wed, 30 Aug 2023 17:44:09 +0000

The Ultrahuman Ring is not just a visual marvel but also a compact powerhouse of health tracking. 🦾 Ensuring that it remains shiny and efficient as the day you first unbox it is pretty simple.

Hardware care: Maintaining the perfect finish

Gentle cleaning routine The Ring, by design, is chemical, sweat and corrosion-resistant. However, a quick and regular cleaning routine is recommended a few times a week to maintain hygiene. Gently sweep away smudges and marks that masquerade as scratches using a soft microfibre cloth. For a thorough cleanse, consider using alcohol-based solutions specifically designed for delicate surfaces.
Thoughtful protection against scratches Be mindful of the environments and activities where your ring may encounter wear. Activities that involve repeated motion with your hands, such as washing dishes, or those that bring the ring into contact with abrasive surfaces, such as metal dumbbells or knurled materials, can lead to cosmetic wear. Consider removing the ring during such activities to keep it looking shiny new.

Using HRV To Understand Your Recovery

Fri, 14 Oct 2022 13:00:00 +0000

Heart Rate Variability (HRV) is related to how you breathe, your blood pressure, emotions and thoughts and your level of readiness vis-a-viz inflammation markers. A consistently high HRV denotes a healthy body. Hence this is one factor that we can control and monitor.

HRV is simply a measure of the variation in time between each heartbeat (like the spaces between notes in a musical sequence of notes). Nowadays, you can check your HRV on your personal monitoring device daily. This is especially useful when watching the quality of recovery after stressful events. This variation is controlled by the autonomic nervous system (ANS), which regulates our heart rate, blood pressure, breathing and digestion among other functions.

Benefits Of Tracking Your Steps

Fri, 14 Oct 2022 12:33:00 +0000

Tracking steps is something everybody seems to be doing nowadays—on their phones, using a wearable device, you name it. It makes sense since keeping count of your steps makes a huge difference to your routine. It’s an extremely effective way to ensure you’re getting enough physical movement daily. Measurable benchmarks in fitness can help improve the overall quality of life.

You may work out regularly and never see the scale move, but when you track your steps, you realise that you’re only averaging 3,000 steps a day, which includes both exercise and non-exercise activities. This piece of information tells you that you need to move more and can allow you to set more focused goals for yourself.

What Are Heart Rate Zone Colours?

Fri, 14 Oct 2022 11:58:00 +0000

We all know that exercise is an essential aspect of maintaining fitness and overall health. But there are many forms and markers used to determine the effectiveness of a workout.

One of the measures that have become increasingly popular is the use of heart rate zones, which can monitor both the rigour and intensity of your workouts. So how does one measure their heart rate zones and how can they be utilised during workouts?

Muscle Memory Is Real, So Is Its Lifespan

Fri, 14 Oct 2022 09:18:00 +0000

The path to fitness is formidable. It’s not so much a destination as a perennial journey teeming with hits, misses, setbacks bounces backs and challenges. Cut yourself some slack because it’s human nature to take some time off.

But it turns out that it metaphorically takes a minute to become unfit and ages to get fit. Doing more than what your body is habituated to doing is a way to enhance its tolerance levels.

Can Wearable Tech Help Reduce Stress?

Fri, 14 Oct 2022 07:21:00 +0000

Stress is your body’s natural response to life’s peaks and crevices. It is defined as any real or interpreted threat to the physiological or psychological state of a person, resulting in physiological and behavioural responses. It is a reaction to an event or thought that adversely impacts your feelings and emotions.

While some stress is necessary and even healthy for our well-being, most forms of stress adversely impact the body and its functioning, especially if one is exposed to them for a prolonged period. Finding ways to deal with and manage stress is imperative to prevent serious health conditions, such as high blood pressure, heart disease, obesity and depression.

How Can Wearable Tech Optimise Your Rest And Recovery?

Tue, 05 Jul 2022 11:03:00 +0000

When it comes to building an optimal workout routine, the chances of an all-encompassing model are slim to none. Age, level of activity, body type and the general demand from your body—all play a crucial role in determining what your optimal workout routine will look like.

Each workout is designed to load muscles (put a certain amount of stress on them), subsequently breaking them down to increase strength and endurance. For this to happen, muscles require ample rest and recovery.

The Science behind wearable tech to track Sleep

Tue, 05 Jul 2022 10:02:00 +0000

Unless you’ve been living under a rock for the past decade, the emergence of wearable tech should not be an alien concept. Wearable smart devices have evolved and now monitor everything—from your activity during the day to those precious z’s at night. Sleep is essential to our physical and mental well-being; our bodies use this time to repair and rejuvenate cells and clear toxins away.

Let’s look beneath the surface and explore the essential function of sleep and the activities that take place in our bodies during slumber. Then, let’s delve into wearable tech in healthcare the science behind the latest devices and the advancements in sleep tracking.

Heart Rate Variability (HRV) and glucose: How are they connected?

Tue, 05 Jul 2022 08:45:00 +0000

While our heart rate is commonly used as a metric for the pace at which our heart beats, heart rate variability (HRV), the measure of varying intervals between two heartbeats, is something that is less commonly known and understood. Blood sugar, or the level of energy in the form of glucose present in one’s blood, is affected by this variability. How are the two connected? Let’s find

Highlights

HRV is a measure of the varying intervals between two heartbeats,
There is a connection between heart rate variability and blood glucose levels, with reduced HRV impacting the body’s processing and storing of glucose,
The latest research suggests that HRV decreases with age.

Understanding HRV and Blood Sugar

Heart rate, usually measured in beats per minute (BPM) is a count of how often a heart beats over a minute. However, this is an average score and doesn’t factor in the time difference between two consecutive heartbeats.

Can HRV help you find your optimal Training routine?

Wed, 16 Feb 2022 08:05:00 +0000

The world of fitness and athletics has evolved from spending countless hours at the gym to finding a way to train smart. Not just getting to your goals faster but in a much safer and sustainable way.

One of the key trends amongst elite athletes and their training protocols is the usage of HRV as a recovery metric. A metric that tells you whether today is the day to push yourself in the gym or to focus on repair work.

Why is Heart Rate Variability after all important?

Thu, 06 Jan 2022 14:50:00 +0000

Heart rate variability (HRV) is generally considered the most important marker for tracking exercise recovery. Still, very few people realize that it's also one of the most important metrics for monitoring overall well-being. HRV reflects the health of the autonomic nervous system (ANS), which regulates crucial body functions. Its associations with heart health, stress, sleep quality and other lifestyle choices are being increasingly examined by the scientific community.

Your Body Temperature and Metabolic Health

Wed, 10 Nov 2021 14:16:00 +0000

Some of the innate measurable parameters that provide key insights into different aspects of our health are known asbiomarkers . Health professionals can make informed decisions regarding the health of patients by analysing individual biomarkers to identify the prevalence of or susceptibility to a particular disease, and its causes and effects. It is crucial for individuals to track their biomarkers to maintain an optimal lifestyle.

Body temperature is one of the most basic biomarkers linked with various aspects of our health, including metabolic health, sleep, stress and almost every other bodily function. Body temperature has long been recognised as a key indicator of health; it is easy to measure and can vary depending on a number of factors. It can also provide a lot of information about our health.

Invite or gift your friends the Ring AIR

Thu, 05 Aug 2021 01:40:00 +0000

Use your unique invite link to refer friends and give them a 10% off (that’s €30) on their first Ultrahuman Ring AIR purchase.

Special instructions

Ensure you have updated to the latest version of the app from the App Store or Play Store for the best referring experience.
The referral discount cannot be combined with any other offer.

During active campaigns

During an active referral campaign period, successful referrals will earn you exclusive rewards depending on the number of successful referrals.

Invite or gift your friends the Ring AIR

Sat, 12 Jun 2021 01:46:00 +0000

Use your unique invite link to refer friends and give them a 10% off (that’s £30) on their first Ultrahuman Ring AIR purchase.

Special instructions

Ensure you have updated to the latest version of the app from the App Store or Play Store for the best-referring experience.
The referral discount cannot be combined with any other offer.

During active campaigns

During an active referral campaign period, successful referrals will earn you exclusive rewards depending on the number of successful referrals.

Invite or gift your friends

Thu, 10 Jun 2021 01:44:00 +0000

Use your unique invite link to refer friends and gift them INR 1000 on their first Ultrahuman purchase.

Special instructions

Ensure you’re updated to the latest App Store/Play Store app for the best-referring experience.
In the case of subscription plans, the discount is applicable for the first month only. The plan renews at full price from the second month onwards.
The referral discount cannot be clubbed with another offer.

Invite or gift your friends

Mon, 12 Apr 2021 01:42:00 +0000

Use your unique invite link to refer friends and gift them AED 100 on their first Ultrahuman purchase.

Special instructions

Ensure you’re updated to the latest App Store/Play Store app for the best-referring experience.
In the case of subscription plans, the discount is applicable for the first month only. The plan renews at full price from the second month onwards.
The referral discount cannot be clubbed with another offer.