Narcolepsy is a physiological disorder caused by the brain's inability to regulate sleep-wake cycles normally. It is usually associated with symptoms such as excessive daytime sleepiness, sudden and uncontrollable sleep attacks, cataplexy (sudden loss of muscle tone), and sleep paralysis. It is not caused by narcotics or psychological factors, and it is not the same as insomnia.

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Narcolepsy Is

Question 104

Multiple Choice

Narcolepsy is

A) a physiological disorder caused by an abnormality in part of the brain that regulates sleep.
B) a sleep disorder brought about by the use of narcotics.
C) similar to insomnia, but significantly more disruptive in the person's life.
D) a psychological state in which the person is unable to fall asleep.

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