When was sleep paralysis first discovered? The first clinical description of sleep paralysis was published in 1664 in a Dutch physician’s case histories, where it was referred to as, ‘Incubus or the Night-Mare [sic]’.
Who came up with sleep paralysis? The original definition of sleep paralysis was codified by Samuel Johnson in his A Dictionary of the English Language as nightmare, a term that evolved into our modern definition. The term was first used and dubbed by British neurologist, S.A.K. Wilson in his 1928 dissertation, The Narcolepsies.
Why does sleep paralysis exist? Why does sleep paralysis happen? During the rapid eye movement (REM) sleep stage, you’re likely to have dreams. The brain prevents muscles in your limbs from moving to protect yourself from acting dreams out and hurting yourself. Sleep paralysis happens when you regain awareness going into or coming out of REM.
How many people had sleep paralysis? Aggregating across studies (total N = 36533), 7.6% of the general population, 28.3% of students, and 31.9% of psychiatric patients experienced at least one episode of sleep paralysis.