Scary hallucinations are common with sleep paralysis, but can the condition be fatal?

Sleep paralysis, experienced by 30% globally, involves hallucinations during REM sleep. Baland Jalal, a Harvard researcher, studies its causes and terrifying experiences.

During sleep paralysis, however, “we regain consciousness before the muscles regain their freedom from REM-induced paralysis,” said Walker, who is also a professor of neuroscience and ...

Sleep paralysis episodes are usually only a few minutes long but can last up to 20 minutes, according to the Cleveland Clinic.During sleep paralysis, however, "we regain consciousness before the ...

Sleep paralysis episodes are usually only a few minutes long but can last up to 20 minutes, according to the Cleveland Clinic.During sleep paralysis, however, "we regain consciousness before the ...

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This type of hallucination is a hallmark for many people with sleep paralysis. It occurs during transitions into or out of rapid eye movement, or REM, sleep, similar to a traffic jam at a busy ...