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

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 ...

Someone built an open-source Whoop app that doesn't require you to pay a monthly subscription ...

You probably check your step count religiously, maybe glance at your heart rate during workouts, and might even pay attention to how many calories your fitness tracker claims you’ve burned. But ...

When I first heard about Google’s new Fitbit Air, I thought I wouldn’t like it, because it doesn’t have a display. But I was ...

Tracking key heart health metrics every day helps you understand how your lifestyle affects your cardiovascular system and empowers you to take proactive steps toward better heart health. Heart ...

Whoop is a top fitness and health tracker – and one of my favorite devices at Wareable. But if you want to check your heart rate, it can be a little hard to find. I’ve been using Whoop for years – so ...

Samsung announced a major update for the Samsung Health app ...

Did you know there’s a number that might let you know how stressed you are, whether you have a cold coming on and how to get into the zone if you’re about to present at a big meeting? You can find ...

A new study led by researchers from Murdoch University's School of Psychology, Personalized Medicine Center, and Center for Healthy Aging, Health Futures Institute has found that heart rate ...

This article was made possible by the support of Yakult and produced independently by Scientific American’s board of editors. Earlier this year I got an Oura ring to track the state of my health. Soon ...