Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...

Here’s what HRV is, how it works and what can cause it to rise or fall.

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From exercise trackers to blood pressure monitors, we give the latest bits of biometric tech a close examination ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. December 4, 2025 Add ...

Wearables give us a new way to think about heart health, but the strategies to get there are still the same.

You'd be forgiven for thinking of a well-known caffeine tablet which was big when I was a university student, but despite the ...

The Garmin Venu 4 and the Apple Watch Ultra 3 are sure to make our best Garmin watches and best Apple Watches lists, respectively, as we wind up the last crop of 2025 releases and head into 2026.