If you wear a Fitbit, Apple Watch or a similar wearable while working out, you already know that you have a useful tool right at your fingertips. One especially helpful feature wearables like these ...

When working out, you expect your heart rate to go up. In fact, increasing your heart rate during exercise is the best way to monitor your health and fitness level. But what if your heart rate stays ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats per ...

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.

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Resting heart rate — the number of times your heart beats per minute when you’re sitting still — is an important vital sign. Doctors measure it to check how your body is functioning, and the number ...