Have you ever experienced a sudden increase in heart rate while sitting, lying in bed or even during a calm moment at work? The feeling can be unsettling as it often comes without warning or a clear ...

You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously not exercising and you don't think you're stressed, so why does it feel like ...

A person’s resting heart rate is often seen as a simple sign of health. Many people believe that a lower resting heart rate ...

Researchers at the Francis Crick Institute have discovered that the heart's own contractions trigger biological signals that guide the formation of a functional beating heart. Their study in zebrafish ...