Sleeping paralysis
Sleep paralysis: A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move a few minutes, usually soon falling asleep or waking up. sleep paralysis is due to improper disconnection between the brain and body. The symptoms of sleep paralysis are the sentiments of sounds, smells, levitation, paralysis, terror, frightening images and intrusions. Once considered rare, about half of all people are now believed to experience sleep paralysis at times during their life. Sleep paralysis strikes as a person is in movement or REM (Rapid Eye Movement) sleep, the deepest part of sleep. During REM sleep the frame is largely outside the brain, leaving the body paralyzed. sleep paralysis is premature (or persistent) mind-body break as a starting (or leave) REM sleep.

Sleep paralysis occurs most often after jet lag or periods of sleeplessness that interrupt normal REM patterns. It affects both sexes equally and occurs in all ages but is more common among adolescents. Sleep paralysis can be familial and may be genetic (hereditary), in some cases. An attack of sleep paralysis is usually harmless and self limiting. It seems to be more in a minute or two, once the brain and body to restore the connections and the person is able to move again. But the memory of the terrible sensations felt during sleep paralysis can long endure. (Some researchers believe that sleep paralysis may account for some of the old claims of attacks by witches and the more recent ;reports; of abduction by aliens from space at night.) A rare form of sleep paralysis Fatal believes that underlie adolescent health cases, particularly in Southeast Asia who die in their sleep, sometimes after fighting for breath, but not blindly.
Sleep paralysis goes by a number of names, including the former ;oldt; in Newfoundland (for an old witch thought to sit on the chest of the paralyzed sleeper), Kokmens; in the Caribbean (for a ghost baby who jumps in sleepers chest and attacks the throat), "Kanashibari; in Japan and &  gui ya; or ghost pressure in China (due to a ghost that is supposed to feel and aggression bed). Medically, sleep paralysis is sometimes called waking paralysis, predormital (before sleep) paralysis, postdormital (after sleep) paralysis and REM sleep atonia.