Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp. Muscle spasms are common and typically don’t signal a severe health ...

You’re relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it’s a muscle in your arm, your leg, or your foot that begins to spasm – sometimes for a few seconds, sometimes for ...

Dystonias are neurological disorders that can cause jerky movements, muscle spasms, repetitive actions, and unusual and awkward postures. Dystonia is a type of involuntary movement, and people ...

Dehydration may be one cause of muscle cramps, and some evidence suggests that electrolyte imbalances also contribute to them. Muscle cramps are painful, involuntary contractions of the muscles that ...

CHICAGO -- Beth Meter is a cardiac nurse who has seen plenty of heart attacks, so when her son complained of sudden crushing chest pain that spread to his arm, she was certain he was having one.