When the human body is exerted during physical activities such as workouts or a run, it is usual for the heart to beat faster than normal. However, there are times when the heartbeat can feel ...

A rapid heartbeat can signal serious health issues that require immediate attention.What you can do: Seek emergency care if ...

Everybody has natural rhythm. Call it your inner drummer--the heartbeat keeps time for the rest of the body. But what happens if your beat's too fast or slow? In medical terms, that's called cardiac ...