Narcolepsy is associated with a relative absence of a hypothalamic neural center that produces

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Narcolepsy is associated with a deficiency of the neurotransmitter orexin (also known as hypocretin), which is produced in the hypothalamus. This deficiency leads to symptoms such as excessive daytime sleepiness and sudden onset of REM sleep. Leptin is a hormone involved in regulating appetite and metabolism, melatonin is a hormone involved in regulating sleep-wake cycles, and THC is a psychoactive component found in marijuana.

Narcolepsy Is Associated with a Relative Absence of a Hypothalamic