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 ...

Mayo Clinic researchers have developed a pioneering method to mend damaged hearts without open-heart surgery, an advance that ...

According to a survey conducted by The Harris Poll on behalf of the American Heart Association, 42% of U.S. adults do not ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

An international research team has uncovered a new insight into human evolution by comparing humans' hearts with those of other great apes. An international research team from Swansea University and ...

Everywhere scientists look for microplastics, they've found them -- food, water, air and some parts of the human body. But examinations of our innermost organs that aren't directly exposed to the ...

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 ...

In many cells of the human body, hair-like protrusions known as cilia act as antennae, allowing cells to receive signals from ...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...