Kids practice rope jumping at a training center in Chang'an District of Shijiazhuang City, north China's Hebei Province, Aug.

Members of the U.S. Naval Forces Southern Command reserve unit during the pushup portion of the physical fitness assessment, May 2022. (MC2 Daniel Cleary/U.S. Navy) The Navy will not require some ...

Sugars and fats are the primary fuels that power every cell, tissue and organ. For most cells, sugar is the energy source of choice, but when nutrients are scarce, such as during starvation or extreme ...

We all know that weightlifting is great for building muscle—and it has fantastic potential to improve (and maintain) bone ...

The therapeutic and medical benefits of exercise are important to your health. The enhancing benefits of exercise are essential to your life. Therapy is, by definition, a treatment for a specific ...

Skeletal muscle mass and function becomes progressively compromised with aging, chronic disease, and physical inactivity. Oxidative stress plays an important role in loss of skeletal muscle mass and ...