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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Tweaked by a muscle twitch? From an uncontrollable fluttering eyelid to a pulsing calf muscle, these small, rapid involuntary muscle contractions may happen at any time — and can be annoying. A common ...

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.

Chorea-acanthocytosis is a rare genetic disorder of the nervous system. It causes involuntary jerks and twitches in the muscles, known as chorea, and star-shaped red blood cells, known as ...

You’re a real jerk if you do this in bed — literally. A Maryland doctor is sharing why people often twitch or experience the sensation that they’re falling just before they fall asleep. Taking to ...