The heart beats around 100,000 times a day, yet most people rarely think about how fast, or how efficiently it’s working, ...

Milliseconds of variability, now detected by fitness watches, can improve well-being Earlier this year I got an Oura ring to ...

It's healthy to know your numbers. Learn about resting and maximum heart rates, exercise targets, and when to consult a doctor about heartbeat irregularities.

Dr Augustine says that people with a low resting heart rate who feel dizzy or faint should seek medical attention, too.

First study to link lower resting heart rate variability with sexual difficulties in women Chances are good that women with a low heart rate variability also suffer from sexual dysfunction. That's the ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

The "Modern Family" alum had a low resting heart rate and doctors told her, “you're gonna be driving a car, and you're gonna pass out” Inside of You with Michael Rosenbaum/YouTube Julie Bowen shared ...

A series of low heart rate alerts on her Apple Watch prompted a woman to get treatment — and discover she had an undiagnosed brain tumor that now needs constant monitoring. Apple Watch has an ECG app, ...