A racing heart is usually a sign of agitation or excitement. But if it's not unusual for your heart to beat too fast or to skip a beat, it might be worth having it checked out by a doctor. In order to ...

“At a cardiac arrest, the first procedure is to take your own pulse first.” —The House of God by Samuel Shem That famous line told to med students is both obvious and true. It’s a reminder that in ...

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 ...