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

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, ...

It might be time to start listening to your heart. In recent years, millions of Americans have incorporated wearable health trackers like smartwatches and Oura rings into their lives, with studies ...

Monitoring your body provides valuable information on your adaptation to training, your risk of injury or illness, and your readiness for the next hard training session. The right data can help ...

In addition to the effects on red blood cells, endurance exercise leads to other mechanisms that help the heart become stronger and more efficient, therefore lowering resting heart rate, says Tamanna ...