You know the feeling. When you first see your crush and your head starts spinning, your palms get sweaty, and your heart ...

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 ...

Signs of an irregular heartbeat: A rapid or slow heartbeat can be dangerous for our health. Let us explain how dangerous it ...

Add Yahoo as a preferred source to see more of our stories on Google. You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously not ...

Ischemic heart disease affects more than 18 million Americans, making it the leading cause of death nationwide. This condition occurs when coronary arteries become narrowed or blocked, restricting ...

A medical team at National Taiwan University Hospital reports that they’ve completed the first beating heart transplant—a procedure in which a donor heart experiences no reduced blood flow during ...