All Articles
Find health guides and all information on metabolic health to feed the curious you.
Why jet lag hits harder flying east – and how to avoid the slump
We explain why flying east hits so hard, and how to make it easier on your body – including a smart tip on morning light
Sep 28, 2026
Why a good night's sleep starts with morning light
We explain why exposure to morning sunlight can help you sleep better – and how much you need to shift your circadian rhythm
Sep 28, 2026
How sleep affects heart health – and the surprising cost of long sleep revealed
Discover how poor sleep affects your heart health, why sleep deprivation is linked to cardiovascular disease, and why rest matters as much as diet and …
Sep 25, 2026
Ultrahuman Returns & Exchanges FAQ
Your returns and exchange queries and questions answered
Sep 25, 2026
Why last night's sleep might be worse than you think
A peer-reviewed study using Ultrahuman Ring AIR has indicated that people's perception of sleep quality is often different from reality
Sep 25, 2026
Blue light-blocking glasses explained – and how they improve sleep
Blue light frequencies have been shown to destroy sleep. We explain the science and how blue light filtering glasses can help
Sep 24, 2026
How long caffeine stays in your system – and why you might feel it for longer
Discover how long caffeine takes to leave your system, and when to cut off caffeine to protect your sleep
Sep 24, 2026
Find your ideal size using the Ultrahuman Ring sizing kit
Getting the perfect fit is essential for comfort and accuracy. Don't take a chance on sizing – here's how to ensure you choose the right size
Sep 24, 2026
Getting started with the Ultrahuman Ring
Getting started with the Ultrahuman Ring AIR or PRO: a step-by-step onboarding guide to charging, pairing, and setting up your ring with the …
Sep 23, 2026