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.

Cholinergic modulation of neural networks supports sequential and complementary roles for NREM and REM states in memory ...

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

This type of hallucination is a hallmark for many people with sleep paralysis.

Although we know sleep is essential to our physical and mental well-being, it remains an incredibly enigmatic behavior, ...

University of Michigan researchers have developed a new theory on the biological function of sleep. Their model suggests ...

Yet greater awareness of sleep deprivation’s consequences hasn’t translated into a better-rested populace. Data from the CDC ...

In REM sleep, our bodies are paralyzed so we don’t act out our ... Other common contributors are sleep deprivation, jet lag, an irregular sleep schedule, sleep disorders such as narcolepsy, and ...