Restless legs syndrome (RLS) is a disorder that causes unpleasant sensations in the legs and an urge to move them. Symptoms are usually worse at night and can interfere with sleep. RLS affects more women than men and risk increases with age. While the cause is unknown, genetics and certain medical conditions seem to play a role. There is no medical test for diagnosis, which is based on symptoms and ruling out other possibilities. Lifestyle changes like exercising, reducing caffeine intake, and taking warm baths can help manage symptoms. Talking to a doctor is important to identify potential causes and treatments for RLS.