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

There are many tools available to check your heart rate, but if you don’t have one, you can still obtain an accurate reading using your pulse and counting in your head or using a stopwatch or timer.

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 health and how to improve this vital sign.

"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 ...

Without the need for expensive or invasive devices, you can easily measure your heart rate at home with the help of your two ...

When I first started running, I always tried to aim to run at a fast pace, which constantly made me feel out of breath and exhausted. But then I learned to focus on a different metric that would make ...