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 ...

We all know there's a heart in the body; we've been reading about it since childhood. As long as it beats, humans live. Let's ...

The chambers of the heart operate as a ‘double-pump’ system for the body’s circulation. In coordination with valves, the chambers work to keep blood flowing in the proper sequence. The chambers on 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 ...

Funded entirely by taxpayer dollars, this first-of-its-kind drug targets cellular metabolism to promote tissue repair of ...

When the human body gets hurt, most tissues heal—skin closes over a wound, bone heals itself. But not all organs heal that ...

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 ...