The main symptom of RLS is a compelling urge to move the legs that worsens with inactivity,  is relieved by movement or counter stimuli (for example, pounding or massaging the legs, or applying cold or warm compresses), and that is most aggravating  in the evening and at night.  Symptoms often delay one’s falling asleep, and can lead to disrupted nocturnal sleep, thus, interfering with the quality and recuperative nature of sleep.  The usual age of onset is in the mid-to-late teens although it can begin in the pre-teens or at a later age, and it is a life time illness.  Daytime sleepiness in genuine narcoleptics typically occurs as irresistible urges to fall asleep –periodic leg movements in sleep (PLMs).