It also contains Think for Yourself activities for children to help them internalize critical thinking ideas. Companions to this mini-guide are 1) the set of masks of Fairminded Fran, Selfish Sam and Naive Nancy and 2) a childrenâs book that introduces the concepts of fairmindedness and selfishness.
Introduction. Sleep paralysis is a temporary inability to move or speak that happens when you're waking up or, less commonly, falling asleep. Although you're awake, your body is briefly paralysed, after which you can move and speak as normal. The paralysis can last from a few seconds to several minutes.
Just why or how it happens isn't clear. Researchers believe sleep paralysis is caused by a disturbed rapid eye movement cycle because it mostly happens as people are falling into or coming out of REM sleep. During that stage, their brains normally paralyze their muscles anyway -- so they don't act out their dreams. But during sleep paralysis, the sleeper is awake, or half awake, and so is aware she cannot move. Studies show that between 25% and 50% of Americans have had sleep paralysis at least once. Many people who have it also have narcolepsy, in which they fall asleep uncontrollably.