Hearts have become iconic symbols of Valentine's Day, but when it comes to hearts in the real world, one size doesn't fit all — particularly in the animal kingdom.
Inside your body there’s a bustling highway with your beating heart at the center. Learn all about your body’s 60,000 miles of microscopic blood vessels, 5 to 6 quarts of blood, and the sundry passengers (lymph, blood cells, nutrients and more) that ride it every day.
Reference The human heart is an organ that pumps blood throughout the body via the circulatory system.
The heart, lungs and about 60,000 miles of blood vessels work together to keep blood pumping through our bodies.
A Nevada man is suing his doctor for allegedly leaving a nearly 5-foot wire in his body for more than a decade.
A blood vessel disorder that most often affects fingers and toes can also show up in the nipples and cause problems with breast-feeding, according to a new report.
People who experience a rare condition known as "broken-heart syndrome" need immediate medical attention, but often make a quick recovery.
Gestational diabetes is a type of diabetes that develops, or is first diagnosed, during pregnancy. The condition, like other forms of diabetes, involves high blood sugar levels.
A woman's beach vacation took an unexpected turn when she was hit so hard in the neck by a wave that it ruptured one of her arteries.
Women who are pregnant may not spend much time worrying about their own hearts, but a new study suggests they should.