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 ...

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Leaf through a textbook, watch a wellness influencer, or listen in at the gym, and it can feel as though the human body has already been mapped to exhaustion. Every muscle named, every nerve traced.

The Franklin Institute is demystifying the organs and vessels that make our bodies tick with an $8.5 million exhibit opening Saturday. The "Body Odyssey" features interactive stations that invite kids ...

It seems like every week, there’s a new headline about some kind of sci-fi-esque organ transplant. Think eyeballs, 3D-printed kidneys, pig hearts. In her new book, Replaceable You: Adventures in Human ...

How did your heart form? What triggered your first heartbeat? To this day, the mechanisms of human heart development remain elusive. Researchers know the heart is the first organ to fully function in ...