Nocturnal leg cramps (NLC) are common, painful, but usually not serious occurrences. They are the involuntary contractions of leg muscles that happen during sleep. It feels like a spasm and they ...

can cause them. Other Possible Causes of Leg Cramps While congestive heart failure is a common cause of leg cramps, other conditions can also lead to them. Simply overexercising a muscle or ...

Background Leg cramps are a common complaint, debilitating through pain and loss of sleep. Although sometimes an identifiable treatable cause may be found, often they remain idiopathic [1]. Quinine is ...