Slackers, rejoice! You knew you were right about exercise all along, didn't you?
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.
Tiny, delicate vessels that carried blood through a duck-billed dinosaur 80 million years ago never fossilized and still contain the beast's tissue, a new study finds.
Lonely people may have worse health than those who are less socially isolated. New research points to why.
A new technology that edits the genes within a cell was used recently to treat a baby with leukemia. The treatment may one day be used to treat other types of cancers, experts say.
People who take certain drugs to lower their stomach acid may be at increased risk of having a heart attack, new research finds.
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.
By mimicking children's pop-up books, scientists can now make complex microscopic 3D shapes that model brain circuitry and blood vessels, researchers say.
Fat cells just under a person's skin may be the first responders to invading bacteria, buying time until the white blood cells arrive at a wound site, according to a new study.
Using cocaine can damage the heart's blood vessels, but this problem doesn't show up on routine medical tests, according to a new study.