Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns ...

The physical forces exerted by a heart beat and the blood flow it produces trigger the formation of new blood cells, according to two studies published today (May 13) in Nature and Cell. Zebrafish ...

In mammals the heart is a double pump. The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the rest of the body tissues. This means that a red blood ...

In addition to causing several types of cancer, human papillomavirus (HPV) appears to bring a significantly increased risk of ...

Your heart is an exquisitely engineered pump made almost entirely of muscle. And you can see the extraordinary engineering in action if we slow your heart to a single beat. Inside the cavernous ...

Originally appeared on the NOVA Web site Cut to the Heart. Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and ...