The well-known formula is simple enough: Subtract your age from 220 to find your maximum heart rate. From there, each “zone” represents a percentage of that HR max number, from zone 1 (easy effort) to ...

Exercising at your max heart rate might leave you drenched in sweat, but that doesn’t mean it’s something you should do regularly. In fact, spending too much time in the high zone could cause symptoms ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...

A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the ...