If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it grows stronger. Of course, muscles only grow when the challenge increases ...

Can heart stents decline over time or need replacement? A cardiologist explains how stents work, why problems can develop, ...

Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

Researchers are continuing to make progress on developing a new synthetic material that behaves like biological muscle, an ...

Discover the magnesium your body needs daily for energy and muscle health. See food sources and when to consider supplements for a balanced diet.

Muscle cramps are sudden, involuntary contractions that can cause sharp, intense pain lasting from a few seconds to several minutes. They often strike during exercise, dehydration, or even while ...

New research suggests pain is not a simple signal of injury but a process that unfolds across nerves, spinal cord, and brain.