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.

Whether brought on by stress, physical activity, or an extra cup of joe in the morning, most of us have all felt our heart rate quicken at one time or another. However, a lower resting heart rate ...

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

If you own a wearable fitness tracker, you’ve likely seen a category referring to your resting heart rate. As the name implies, it measures the number of times your heart beats per minute while you’re ...

That little number on your fitness tracker might be more important than you realize. Your resting heart rate isn’t just some random vital sign. It’s essentially a window into how efficiently your ...

Even though I prefer not to train and coach by heart rate, I have found that using these numbers—specifically resting heart ...

Objective Identify key determinants of heart rate variability (HRV) in male athletes aged 14–21 years participating in competitive contact sports and integrate these determinants to define normative ...

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 ...