When it comes to your body, knowledge is power. Literally. The better you understand your muscles and what they're capable of, the more you can do with them, whether you're acing a serve or turning ...

If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it ...

Building muscles: Muscle stem cells (their nuclei marked in blue) gradually alter their structure and function, becoming adult muscle cells (whose nuclei turn red). Those cells will eventually fuse ...

MIT researchers have developed a way to help people with amputation or paralysis regain limb control. Instead of using electricity to stimulate muscles, they used light. Here, Guillermo Herrera-Arcos ...

While lifters don't burn as many calories during their workouts as the folks who run or bike, they burn far more calories over the course of the next several hours. This phenomenon is known as the ...

An investigation on the International Space Station to learn more about exactly how cells sense gravity could help scientists figure out ways to prevent that muscle loss, in space and on Earth People ...