Heart valve stiffness is caused by build up of calcium in the heart, which can make the heart pump blood less efficiently.

Heart disease kills 18 million people each year, but the development of new therapies faces a bottleneck: no physiological model of the entire human heart exists -- so far. A new multi-chamber ...

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 ...

Valvular heart disease, often initially dismissed as aging or stress, can lead to serious complications like heart failure ...

Researchers say they have been able to tap a new pool of organ donors to preserve and transplant their hearts: people whose hearts have stopped beating, resulting in so-called circulatory death.

Less than a year after the first-ever transplant of a pig heart into a human patient, doctors are reporting that the heart showed unexpected changes in its electrical system before the recipient ...

A new study shows that the sinoatrial node (SAN) -- a small but powerful structure in the human heart that serves as its natural pacemaker and initiates every normal heartbeat -- runs on different ...

Heart slice culture is a technique that allows researchers to study the structural and functional properties of heart tissue in a controlled laboratory setting. This technique involves slicing thin ...

A powerful muscle in the lower body quietly supports the heart’s work every single day. Experts say it plays a far greater role in circulation and vitality than most people realise. Every step taken, ...