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.

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 ...

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.

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Sitting at your desk, a muscle in your leg palpitates quickly. Or a muscle under your eye flutters. These sudden twitches, known as fasciculation, occur commonly and seem random. But are these spasms ...

A twitching eye is often annoying. But is it a reason to worry that your nerves may have gone haywire? One expert, Neil Miller, professor of neuro-ophthalmology and neurosurgery at Johns Hopkins ...

Hemifacial spasms happen when a blood vessel puts excess pressure on a facial nerve, per the National Institute of Neurological Disorders and Stroke (NINDS). They can also be caused by external nerve ...

After a grueling CrossFit workout on a hot Summer morning that involved kettlebell swings, goblet squats, and about 100 walking lunges, my lower body was toast. But what was weird was that my left ...

An irritating eyelid flutter might be more than just stress. Dr Saurabh Sethi, a Harvard-trained gastroenterologist, explains ...