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 ...

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 ...

Muscles age differently than you think. Discover the science behind the aging muscle paradox—and how exercise can help you stay strong and biologically young.

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 ...