Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

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Sometimes our bodies do odd things. A friend recently asked me about her twitchy eye, and my own eye muscles twitch once in a while. Have you ever wondered why? The medical term is blepharospasm, and ...

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Does your eye twitch frequently, or do you experience frequent headaches? It may be your body’s way of telling you that you’re low on magnesium.

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

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 ...