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 ...

For most people, it is. Your age and overall health help determine a healthy heart rate. Learn more about the causes and risks of a speedy pulse.

You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously ...

To live is to have a heartbeat, which is why it makes sense for us living things to have a good understanding of our ticker. It’s well-known science that our hearts beat faster when we exercise and ...

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 ...

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 ...

The issue: Many runners (particularly women) report that their fitness trackers tell them they’re exercising in a higher zone ...