Narcolepsy

Narcolepsy is a chronic disorder of the sleep-wake cycle and rapid eye movement (REM) sleep phase. Classic narcolepsy features daytime sleepiness, sudden muscle weakness known as cataplexy, sleep paralysis, and hallucinations. This occurs in 10-15% of cases. The only symptom specific to narcolepsy is cataplexy. It typically develops in the second decade of life. Sleep studies show rapid onset of sleep and at least two instances of REM sleep beginning. Narcolepsy is treated by lifestyle changes, daytime sleepiness is treated with stimulants, and cataplexy is treated with medication.

Source | Author Doctor Nikas Samuolis, reviewed by Prof. Virginijus Šapoka | Vilnius University | Faculty of Medicine | Head of the Department of Internal Medicine, Family Medicine, and Oncology