For the first few seconds, as Galpin plunges the surgical equivalent of a post-hole digger into my thigh, it feels like a grade-school bully pressing his knuckle into my leg. Then the sensation shifts ...

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 ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Get started with your new workout routine with these guidelines, tips, exercises, and more.

You’ve probably heard the saying “running is 90 percent mental, the rest is physical.” Of course you need the muscular strength to propel you forward, but without your brain, you won’t get far. It’s ...

Your abdominal muscles surround your trunk between the rib cage and pelvis and keep your abdominal organs safe. Your core abdominal muscles also support your trunk and allow movements while keeping ...