Narcolepsy is caused by a deficiency of orexin, a brain chemical that regulates wakefulness and REM sleep. The MSLT and polysomnography are gold standards for diagnosing narcolepsy.

When you have narcolepsy, you don’t have enough neurons that make orexins. Skip to main ... you’ll feel sleepy for long periods of time and your body won’t have much control of REM sleep.

People with narcolepsy often enter REM sleep within minutes of falling asleep rather than the normal 90-minute delay, creating an unstable sleep architecture that prevents truly restorative rest.

Narcolepsy type 1 (NT1) is defined by cataplexy, a sudden loss of muscle tone triggered by strong emotions, alongside excessive daytime sleepiness (EDS), sleep paralysis, hallucinations, and sleep ...

Narcolepsy is characterized by daytime sleepiness and intrusions into wakefulness of REM sleeplike phenomena, including cataplexy and hypnagogic hallucinations. In addition, people with narcolepsy ...

Medically reviewed by Smita Patel, DO Hypersomnia and narcolepsy are both sleep disorders that cause excessive daytime sleepiness and other changes in natural sleep-wake cycles. "Hypersomnia ...

People with narcolepsy do not slowly move through the stages of sleep as the average person does. Instead, they jump to REM sleep quickly, within 15 minutes of falling asleep.

That theory posits that, if memories were shrubs, the non-REM phase of sleep helps them grow taller and stronger. The REM ...

Narcolepsy is a sleep disorder that specifically affects the rapid eye movement (REM) cycle. Hallmark symptoms of narcolepsy include excessive daytime sleepiness (EDS) and disruption of the sleep ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders ...