An updated Health Sensing System is at the heart of this year’s Apple Watch. I put it to the test.

Kansai University Associate Professor Yuki MarunoAbout this articleThis article is a digest version of the article (an ...

Wearables measure several aspects of health, and heart rate variability might be one of those. It may be surprising when your device informs you that your heart rate variability is high or low, but ...

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 ...

I Tested the New Apple Ultra 4’s Readiness Score and Battery Life. Here’s Why It's Worth the Upgrade.

AirPods Pro 3 heart-rate testing looks promising against Apple Watch and chest-strap benchmarks, but the results apply best to healthy users in controlled workouts. Image: Apple AirPods Pro 3 may be ...

From resting heart rate to training zones to heart rate variability, heart rate data gets a lot of glory when it comes to running—and for good reason! But now, some athletes are starting to talk about ...

A recent study showed that the heart rate variability of a dog and its owner adapt to each other during interaction. High heart rate variability is associated with relaxation, while low heart rate ...