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 ...

If you wear a fitness tracker, you've likely seen a stat labeled "HRV" pop up on your screen. But what does it mean, and does it matter? Short for heart rate variability, HRV has become a popular ...

Wearable health devices such as smartwatches and bands are more than fitness trackers. Many also can monitor your cardiovascular health. Some wearables can highlight problems such as irregular heart ...

It turns out, there’s a link between your hydration and heart rate variability. Here’s a look at the science. The post Science reveals how hydration can influence your heart rate variability appeared ...