It might be more than you think.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Whether you work out because it makes you feel good or it helps ...

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 ...

Understanding how muscles grow is the key difference between training hard and training effectively. Muscle hypertrophy is ...

Inner thigh workouts are important for both men and women. These exercises focus on the muscles that bring your thighs together, called your adductors. To work out your inner thighs, you can try many ...

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 ...