Night leg cramps are sudden, painful muscle contractions in the calves, feet, or thighs, often occurring during sleep. These ...

slow-twitch muscle fibers, which move more slowly but help to keep you moving longer fast-twitch muscle fibers, which help you move faster, but for shorter periods “Twitch” refers to the contraction, ...

A powerful muscle in the lower body quietly supports the heart’s work every single day. Experts say it plays a far greater ...

A rarer condition that causes eye twitching is known as blepharospasm and involves “forceful, involuntary closure of both eyes at the same time,” Moss says. She notes that blepharospasm can range from ...

For years, the body’s largest lean tissue—skeletal muscle—has been underestimated in its role in managing metabolic health. Despite its size, it contributes surprisingly little to blood sugar and fat ...