You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...
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Humans have weaker ear muscles than chimps—yet some humans are still able to twitch them
Most people never think twice about their ears, until they catch a strange little twitch they can't explain. It might happen ...
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Benign Fasciculation Syndrome: Causes and Treatment
Medically reviewed by Nicholas R. Metrus, MDMedically reviewed by Nicholas R. Metrus, MD Almost all of us will have experienced a fasciculation at one time or another. A fasciculation is simply a ...
Infectious agents can cause muscle twitching and spasms, too. The most commonly known is probably tetanus, which causes a phenomenon called lockjaw, where the neck and jaw muscles contract to the ...
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