The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

Atrium Health’s heart transplant team could potentially double its number of patients thanks to a new technology that keeps a heart beating outside the body, doctors on the team said at a news ...

Though an estimated 60 million people around the world have atrial fibrillation, or A-fib, a type of irregular and often fast heartbeat, it's been at least 30 years since any new treatments have been ...

For the first time ever, surgeons at National Taiwan University Hospital (NTUH) successfully performed a heart transplant in which the donor organ never stopped beating. This revolutionary procedure ...

The family of Brooke Dawkins met the woman who received their daughter's heart. — -- The family of a Florida teen who died in 2014 was able to hear her heart beat again after meeting the woman ...