Don’t get me wrong, wrist-based heart rate tracking on smartwatches has improved loads over the years, but if you do anything ...

Calculate your target heart rate zone and work to stay in the middle of that zone while you’re doing your cardio. Here’s how you do it: According to the American Heart Association, a person’s target ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

Disneyland is pivoting on 'Star Wars' land. Here's why. Jennifer Lawrence says she lost out on Tarantino role because she ...

Atrial fibrillation is one of the most common kinds of arrhythmia, causing the heart not to contract properly in order to ...