Restless leg syndrome (RLS) is characterized by an irresistible urge to move the body in order to stop an uncomfortable or odd sensation, often described as a burning, itching, or tickling. It usually affects the legs, but can also occur in the arms or torso. It is estimated that restless leg syndrome affects seven to ten percent of Americans, with approximately two percent of the population experiencing severe symptoms. Restless leg syndrome occurs in females twice as often as in males, and is more common with those who are Caucasian, iron deficient, pregnant, elderly, or obese. Some cancers, depression, and a sedentary life style have also been linked to restless leg syndrome. This syndrome is treatable, and can often be assuaged by a healthy lifestyle as well as moving around once you begin to experience symptoms in the night. Restless leg syndrome can also be treated with medicine. If you think you have this disorder, you should consult with your physician.