You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...

Night leg cramps, or nocturnal leg cramps, are sudden, involuntary muscle contractions that usually occur in the calves, feet, or thighs during rest or sleep. These painful spasms can last from a few ...

Night-time leg cramps are common but poorly understood. An orthopaedic doctor explains why they strike during sleep, what triggers them, and when they need medical attention.

Picture this: You’re lying in bed, *just* about to fall asleep, when your leg starts to cramp. The contractions, the twisting, the spasms, ugh! Naturally, you start to wonder, what causes leg cramps ...

Stiff person syndrome (SPS) causes you to have muscle stiffness and spasms, often triggered by sudden noises or touch. You can use medications like muscle relaxants and anticonvulsants to relieve ...

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 ...