Restless leg syndrome (also restless legs syndrome ) is a serious neurological disorder. It involves an irresistible urge to move certain regions of the human body to stop odd or uncomfortable sensation. This condition often involves the legs , torso , the head or the arms . Moving an affected part of the body modulates sensations, which may provide temporary relief. Around 75% of people who have RLS have problems involving iron . Other possible issues include varicose veins , sleep troubles, conditions involving blood sugar , ADHD or fibromyalgia .

This short article about biology can be made longer. You can help Wikipedia by adding to it .