Stress takes a toll on the mind and the heart. It can impact heart function at a molecular level, triggering increased inflammation and “leading to the release of harmful molecules that contribute to ...

To live is to have a heartbeat, which is why it makes sense for us living things to have a good understanding of our ticker. It’s well-known science that our hearts beat faster when we exercise and ...

In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart health and how to improve this vital sign. Resting heart rate — the number of ...

That subtle thumping you feel in your wrist or neck is more than just the rhythm of life; it's a vital sign that can offer valuable insights into your heart health. Your resting heart rate (RHR), ...

Taking easy runs too fast is a common habit among runners, much to the chagrin of coaches everywhere. I know staying in the zone 2 range is critical for aerobic development, and after lowering my ...