In TODAY.com's Expert Tip of the Day, a cardiologist explains how to slow down a racing heart in times of stress.

Sure, you could lower your heart rate by slowing down. But that’s not what we’re talking about here. Assuming you’re trying to hold a steady pace, an elevated heart rate usually points to ...

That little number on your fitness tracker might be more important than you realize. Your resting heart rate isn’t just some random vital sign. It’s essentially a window into how efficiently your ...

In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart ...

The beat is intensifying. Every new electronic device these days – from your phone to your watch to your ring – seems to want ...

Our hearts beat faster when we exercise, which is why heart rate training can be so useful. But when we aren’t doing anything, our heart rate can still be useful to know. If you have a wearable that ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When I first started running, I always tried to aim to run at a fast pace, which constantly made me feel ...

You can also test the accuracy of your numbers out on the run, for example by running at what feels like a hard pace (using the ‘talk test’, you should only be able to get two or three words out at a ...