Restless Leg Syndrome
Restless Leg Syndrome (RLS) is a disorder (of the part of the nervous system) that affects the legs and causes an urge to move them. Because it usually interferes with sleep, it also is considered a sleep disorder.
Signs and symptoms:
People with restless legs syndrome have unexplainable sensations in their legs and sometimes arms or other parts of the body. They cause irresistible urges to move their legs to relieve the sensations. The sensations are difficult to describe: they are an uncomfortable, "itchy," "pins and needles" or "creepy crawly" feeling in the legs. This can lead to sleep deprivation and stress. Symptoms can come and go and severity can also vary. The symptoms are generally worse in the evening and at night.