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 ...

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 ...

If your resting heart rate is abnormally high or low, it could signal risks that need the attention of a doctor, say heart experts From Apple Watches to Fitbits to treadmills, there are more ways than ...