Carb Cycling: Does It Actually Work? A CGM Reality Check
Does carb cycling actually work? See what the evidence shows for endurance athletes, why it rarely helps dieters, and what CGM data reveals on carb …
May 29, 2026
Parasympathetic vs Sympathetic: Activate Your Body's "Rest & Digest" Mode
Learn how your parasympathetic and sympathetic nervous systems balance rest and stress, and how to shift into recovery mode to feel calmer on demand.
May 29, 2026
What Does the Luteal Phase Feel Like? A Guide to Symptoms, Mood, and Training
Understand what the luteal phase feels like, from temperature and mood shifts to energy, sleep and cravings, and how to train and eat through it.
May 28, 2026
A1C Calculator: What Your Number Really Means
What does your A1C number really mean? Use our A1C-to-glucose chart to understand your results, where the test misleads, and how CGM fills the gaps.
May 28, 2026
Sleeping Heart Rate by Age: 532,000 Ring Users' Nightly Data Compared
See how sleeping heart rate varies by age across 532,000 Ring AIR users, what raises or lowers it and when a lasting change may warrant attention.
May 28, 2026
Why Is My Period Late? Eight Non-Pregnancy Reasons
Explore eight non-pregnancy reasons your period may be late, from stress and thyroid issues to perimenopause, and when to seek clinical evaluation.
May 27, 2026
Is Chick-fil-A Healthy? A Nutrition Guide to Every Menu Item
Is Chick-fil-A healthy? Go beyond calories with a nutrition guide to every menu item, from breakfast to sides and drinks, and its likely blood sugar …
May 27, 2026
Glutathione Benefits: The Master Antioxidant Explained
Discover the real benefits of glutathione, your body's master antioxidant, the foods and precursors that raise it, and where oral supplements fall …
May 27, 2026
Period Symptoms — What's Normal and What's Concerning
Learn which period symptoms are normal, from cramps to mood changes, and which signs like heavy bleeding or severe pain deserve clinical evaluation.
May 26, 2026
How to Lower A1C Naturally
Discover how to lower your A1C naturally through diet, exercise, weight, and sleep, what the blood test measures, and when medication should join your …
May 26, 2026
What Is Invert Sugar? How It Affects Blood Glucose
If you've spotted "invert sugar" on an ingredient label and wondered if it's worse than regular sugar, Ultrahuman Medical Director Mukul Mittal …
May 26, 2026
Does Red Light Therapy Work? What the Evidence Supports
Does red light therapy work? Explore what photobiomodulation actually does, where the clinical evidence is strong, and how to judge home devices now …
May 25, 2026
HRV by Age and Gender: What's Normal for Men vs Women
HRV reflects autonomic balance and recovery. See median heart rate variability by age and gender, what's normal for men vs women, and why your …
May 25, 2026
When Does Perimenopause Start? Average Age and Early Signs
Learn when perimenopause starts, its average onset age and earliest signs, so you can recognise this transition rather than treating symptoms alone.
May 25, 2026
How Low Progesterone Shows Up in Your Sleep, Mood, and HRV
Low progesterone shows up in sleep, mood, and cycle changes — and your wearable can spot the signals. We reveal what to look for and when to test.
May 23, 2026
Perimenopause Tests: Reliability Issues and Accuracy Explained
Can a blood test confirm perimenopause? Learn what FSH, estradiol, and AMH tests really measure, why they fall short, and why your symptoms matter …
May 23, 2026
Implantation Bleeding vs. Your Period — How to Tell the Difference
Spotting before your period? Learn how to tell implantation bleeding from a real period, what is normal in early pregnancy and which popular myths to …
May 23, 2026
How to Increase Estrogen: Why It's Not What You Eat, But How Much
The relationship between boosting estrogen and food is often misunderstood. We break down what you need to know
May 22, 2026
Low histamine diet explained and the triggers to be aware of
We explain how a low histamine diet works and the symptoms to look out for
May 22, 2026
Discharge Before Your Period: A Complete Guide to What's Normal
Learn what normal discharge before your period looks like, why it changes through your cycle, and which colour or texture shifts mean it's time to see …
May 22, 2026
Why Breasts May Be Sore or Tender in Perimenopause
Ultrahuman Medical Director Mukul Mittal explains why sore breasts are common during perimenopause - and examines the data
May 22, 2026
Cramping But No Period? Here's What It Could Mean
If you're experiencing cramping without a period, Ultrahuman Medical Director Mukul Mittal explains common reasons
May 21, 2026
Sucrose explained: The key differences with 'added sugar' and how it affects your body
Naturally occurring sucrose isn't bad in itself – but when refined and added to food it's linked to a host of poor health outcomes
May 20, 2026
Is Chipotle healthy? How to create the healthiest combo (based on our CGM data)
How to create the healthiest Chipotle order – based on Ultrahuman glucose data
May 20, 2026