All Articles
Find health guides and all information on metabolic health to feed the curious you.
How to reduce screen time for better sleep and healthier connections
We outline ways to reduce your screen time for better sleep and being more present
Oct 21, 2026
What is invert sugar and its effect on blood sugar explained
If you've spotted "invert sugar" on an ingredient label and wondered if it's worse than regular sugar, Ultrahuman Medical Director Mukul Mittal …
Oct 21, 2026
A1C explained: Normal range chart and the limitations of A1C explained
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.
Oct 19, 2026
How clock changes and DST affect your sleep
Discover how Daylight Saving Time disrupts your circadian rhythm and how your Ultrahuman Ring adapts to keep your sleep, recovery, and body clock on …
Oct 19, 2026
Why heart rate variability (HRV) matters
Understand why heart rate variability matters, how HRV reflects your autonomic nervous system, and its links to stress, sleep and overall wellbeing.
Oct 16, 2026
What's a normal HRV for men and women – based on 510,000 Ring users
If you're wondering what a normal HRV is for men and women, we analysed heart rate variability data from 510,000 Ring users to find out.
Oct 16, 2026
5 ways to lower your resting heart rate
A lower resting heart rate is a sign of good fitness. We explain how to lower RHR – both short term and your long term baseline
Oct 15, 2026
What's a normal sleeping heart rate by age – from 532,000 Ultrahuman users
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.
Oct 15, 2026
If you wake up at 3 AM regularly, use our matrix to find out why
If you find yourself waking at 3AM regularly, it could be your metabolism. Use our guide and matrix to help find out why
Oct 14, 2026