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.

Thanks to wearable devices, you can use all sorts of metrics to keep track of your health. You can check your weight, blood pressure, the number of steps you take, heart rate and more as you go about ...

It might be time to start listening to your heart. In recent years, millions of Americans have incorporated wearable health ...

M odern smart watches can measure an array of health indicators. Step counts and heart rates sit at the simpler end, while VO2 max and blood-oxygen levels are mainly of interest to committed health ...

Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...

If you own a fitness tracker, you’ve likely come across the term HRV (heart rate variability). You may have even seen people proudly posting their HRV numbers on Instagram. But what can the ...

Respiratory rate, another metric in the Apple Watch vitals app, shows how many breaths you take per minute. This typically ...

Unlike your resting heart rate, which you can take with nothing more than a stopwatch and a finger to your pulse, tracking your heart rate variability (HRV) is more complicated. While it used to ...