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Find health guides and all information on metabolic health to feed the curious you.
Famous athletes' resting heart rates and how they compare to normal adults
Discover the athletes with the lowest ever resting heart rates – and how they compare to normal adults and Ultrahuman Ring users
Sep 09, 2026
Normal blood sugar levels by age explained
What's a normal blood sugar by age? Dr. Mukul Mittal walks you through the chart — fasting, post-meal, A1C, and how targets change with life stage.
Sep 09, 2026
Maltitol explained: Does the sugar-free sweetener spike glucose?
Does maltitol raise blood sugar or cause stomach upset? We break down its real effects, why its laxative reputation is overblown
Sep 08, 2026
Does Coke Zero raise blood sugar? Not in the way you might think
Coke Zero is sugar-free and calorie-free and Ultrahuman data shows it doesn't usually produce a glucose spike. But caffeine can cause fluctuations in …
Sep 08, 2026
Is Horlicks healthy? Blood sugar impact and nutritional value explained
Ultrahuman CGM data shows 69% of users had an unstable glucose response to Horlicks. Here's what a bedtime mug is really doing to your blood sugar.
Sep 07, 2026
Why you should delay your first coffee by 90 minutes
Discover why delaying your morning coffee by 90 minutes can boost focus, energy, and sleep — backed by neuroscience and circadian rhythm research.
Jul 19, 2026
England v Mexico: How the 2am kick-off affected the nation’s sleep and recovery
Ultrahuman Ring data reveals how England's 2am World Cup kick-off against Mexico cut the nation's sleep, lowered HRV, and affected overnight recovery …
Jul 14, 2026
Ovulation Symptoms: A Complete Cycle-Tracking Guide
What are the signs of ovulation? We break down cervical mucus, BBT, and the LH surge — and the most reliable ways to track your fertile window.
Jun 16, 2026
Follicular Phase Explained: Energy, Workouts, and Mood
What is the follicular phase? We break down the first half of your cycle — how rising estrogen shapes energy and mood, and what the science says about …
Jun 16, 2026