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Explore clear insights based on health data, research, and real-life examples — designed to help you stress less and recover smarter
Most read
July 23, 2026
Your heart doesn't know you're not running away from a lion. And that's the problem.
An elevated heart rate without movement quietly damages your cardiovascular system. Here's the mechanism — and what you can do about it.
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May 21, 2026
A new way to understand yourself: Daria Volkova introduces the Self-Discovery Experiment
Welltory introduces the Self-Discovery Experiment — a new way to understand what affects your energy in real time. Daria Volkova, Growth Product Manager, shares how it works.
Data stories
Throughout 2025 we passively measured the nervous systems of 18,734 Welltory users across all 50 states and DC. This series unpacks what we found: how the country's body responded to the events of the year.
October 15, 2026
Are vacations overrated?
We compared five vacation types to see whether people came back recharged. Their body data showed no clear improvement in the first week after returning. People often slept worse and had lower energy scores on vacation. After coming home, their scores were generally close to where they started.
September 16, 2026
When basic needs aren't met, resting heart rate is higher
An analysis of 19.1 million resting heart-rate readings found that material hardship, including food, housing, utilities, and health insurance insecurity, was strongly linked to higher resting heart rates across U.S. states.
August 4, 2026
The four-day workweek: what the data and research actually show
What the trials, the peer-reviewed evidence, and recovery data actually show
Make sense of your body signals
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Featured insights
September 12, 2026
Nervous system snapshot
A reading of your autonomic state at a single moment: how activated your nervous system is, how easily it settles, and how well its two branches are working together.
September 12, 2026
Measure HRV without a wearable
You can measure heart rate variability with your phone camera in about a minute — no ring, no watch, no extra hardware. What a camera reading gives you, how accurate it is, and when each app actually takes its measurement.
September 12, 2026
How accurate is HRV from a phone camera?
Camera, wrist, ring or chest strap — accuracy depends on where the sensor sits and whether you move. What the validation studies found, what they left out, and how to check your own.
Latest articles
Welltory Energy Lab reviews: what members say about the community
October 23, 2026
Stroke in young adults: why it's rising, the signs, and what raises your risk in your 30s and 40s
October 22, 2026
Eating before bed: what a late dinner does to your sleep, heart rate and reflux
October 22, 2026
Cold plunge before or after a workout: when cold helps recovery and when it costs you gains
October 22, 2026
How many steps a day do you really need? What the research shows by age and goal
October 22, 2026
VO2 max by age: a chart for men and women, and what the decline really looks like
October 22, 2026
How accurate are smartwatch calories? What a 2026 lab study found across four brands
October 22, 2026
Supplement and drug interactions: CoQ10, St John's wort, turmeric and the combinations to check
October 21, 2026
Grapefruit and medication: which drugs don't mix, and why
October 21, 2026
Welltory review: what users say, what it does well, and what to know before you start
October 21, 2026