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 ...

For years, doctors have relied on familiar vital signs—heart rate, blood pressure, temperature and oxygen levels—to monitor someone's health. But researchers at the University of Missouri believe one ...

Science writer Mary Roach is fascinated by the human body, especially, she says, the "gooey bits and pieces of us that are performing miracles on a daily basis." Take the human heart, for instance. If ...

The models can be used to plan surgeries and in the future could be used to help trial new drugs. A healthy heart beats at a steady rate, between 60 and 100 times a minute. That’s not the case for all ...

Purdue University Scho o l of Nursing students place their hands into a large, beating human heart, immersing themselves into anatomy rather than simply studying it. “Nursing is very hands-on,” Nagle ...