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 ...

At its core, looking at your HRV trend over time gives runners a window into how well they’re balancing training stress with recovery. “Higher HRV is synonymous with having a very healthy nervous ...

Heart rate variability can reveal how well runners are recovering – here, a cardiologist explains how to use HRV without ...

Are we humans capable of synchronizing our physiologies when we harmonize our thoughts and behaviors? Do members of an orchestra synchronize their hearts as well as their instruments?

When one partner is stressed, the other feels it too—not just emotionally, but on a biological level. New research on heart rate synchronization helps explain how.