Working out doesn't just build muscle but, in later life, helps maintain a powerful cellular machine that repairs damaged ...

The contraction of smooth muscle is an essential process underpinning diverse physiological functions ranging from gastrointestinal motility to vascular regulation. At its core, smooth muscle ...

Defense mechanisms are primarily unconscious responses that allow people to protect themselves from anxious thoughts, strong feelings or emotions, unwanted impulses, or painful memories. They are ...

Tsukuba, Japan—Muscle fibers, which constitute skeletal muscle, are classified into two main types: slow-twitch (Type I, red muscle) and fast-twitch (Type II, white muscle). Slow-twitch fibers are ...