sleep paralysis
A brief spell, on falling asleep or waking, of being aware but unable to move the body, while the eyes move and breathing goes on as usual.
Where it comes up
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01
What is REM sleep?
What REM sleep is, why your body can’t move while your brain is nearly awake, why it gathers toward morning, and what it may do for memory.
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02
What is narcolepsy, and could I have it?
Sleepy all the time, or woke unable to move? What narcolepsy is, how it differs from ordinary tiredness, its signs and how it's diagnosed.