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Muscle cramps
Muscle cramps can have many possible causes, but they always result in pain and inflammation.

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Nighttime Leg Cramps

Muscle cramps are caused by painful and involuntary contractions of a muscle or group of muscles. Nighttime or nocturnal cramps manifest as sudden muscle pain and stiffness in the legs, feet or both, while at rest. They can interfere with sleep. The cramps only last a few minutes, sometimes seconds.
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