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 ...

Tucked in the basement of the Mayo Building on the University of Minnesota’s Twin Cities campus sits a detached, beating pig’s heart floating in clear liquid. Graduate and undergraduate students ...

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 ...

Detecting the faint energy of a human heart beating beneath 10 feet of brick and concrete is a signal-processing feat that almost defies the imagination. Yet that is exactly what rescuers did for four ...