You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously ...

It's a common yet uncomfortable sensation when the heart beats rapidly for a second or two and then becomes normal. Whether ...

Your heart beats about 100,000 times a day. Sometimes it beats faster and sometimes more slowly, depending on what you're doing and whether, for instance, you're all worked up about something. So ...

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 ...

If you’ve ever experienced the sensation of your heart beating really fast for a second or two after which the feeling goes away? it is usually no big deal, because normally, a person’s heart beat ...