Repeated exercise, or wasting, can change the way key genes work.

Some of the best muscle-building foods include protein-rich chicken, salmon, and lentils. You can pair dietary changes with ...

As you bite into a crisp apple, your jaw muscle contracts, allowing you to grind the fruit between your teeth. When you climb a flight of stairs, your gluteus maximus (or "glutes") push your body ...

The misconception that muscle can be lean or bulky lies in its appearance. “When people (say ‘lean’), they’re usually ...

A new study finds that even after weight returns in anorexia nervosa, muscle strength may remain impaired, with implications for recovery.

Creatine, a supplement often used by athletes and bodybuilders, could also make treatments for depression more effective ...