A racing heart is usually a sign of agitation or excitement. But if it's not unusual for your heart to beat too fast or to skip a beat, it might be worth having it checked out by a doctor. In order to ...

From Apple Watches to Fitbits to treadmills, there are more ways than ever for people to keep up with their vitals. So why does so much fitness tech check your pulse? Because your resting heart rate ...

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 AirPods may soon become your most important pieces of fitness gear. One of the AirPods Pro 3’s new features is heart rate tracking for both workouts and periodic pulse checks. Apple’s latest ...

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...