Restless Legs Syndrome (RLS) is a disorder characterized by an uncontrollable urge to move the legs. Symptoms of RLS include itchy, burning and tingling sensations. It is worse at night when lying down and is relieved by movement or walking. RLS can cause trouble falling asleep, and/or repeated awakenings. This disorder is most common in middle and older age groups and affects 10-15% of the US population. Click to learn more.