About
Narcolepsy is a sleep disorder that features excessive daytime sleepiness.In a tycpial sleep stages. This is when REM sleep occurs. It takes around 60–90 minutes to reach the stage of REM cycle, a person will first enter the early stage of sleep, then the deeper sleep sleep.
Tests will show that the person is almost entirely missing a neurotransmitter known as hypocretin. This may occur after an infection triggers an autoimmune condition.