Heart rate variability, or HRV, is quickly becoming one of the most important metrics in modern fitness, and for good reason. Unlike heart rate, which tells you how fast your heart is beating, HRV ...

What is heart rate variability (HRV)? As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...

Heart rate variability isn’t just for elite cyclists—find out how tracking HRV can benefit every rider’s training, recovery, ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...

Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...

Wearables are best at noticing breaks from your body's usual patterns. Those outliers can hint that something warrants ...

Men's Fitness aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Heart rate variability, or HRV, is quickly becoming one of the ...