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Sleep Paralysis

Human Anatomy, Physiology, and Medicine. Anything human!

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Sleep Paralysis

Postby HBioStudie » Wed Oct 26, 2005 9:58 am

Does anyone know what it's caused by???
Thanks a lot... :D
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Postby Iftekhar » Wed Oct 26, 2005 1:05 pm

REM atonia is a normal function of the body. The muscles that move the body are "turned off" during REM sleep, which prevents you from acting out dreamed actions in reality. Non-REM sleep paralysis after waking up ("old hag") is caused by a failure to re-activate the muscles immediately. Normally this condition lasts only a few seconds, but sometimes it can go for a minute, which causes a scary feeling. You are sure you're awake now but you can't move. This is unpleasant but not dangerous.
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Postby mith » Wed Oct 26, 2005 10:02 pm

not quite sure what you mean by old hag....
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
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Postby Iftekhar » Thu Oct 27, 2005 4:23 pm

Old hag is an old-fashioned term which was used for referring sleep sickness.
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Postby ushishir » Fri Oct 28, 2005 7:29 pm

Some people can experience hallucinations while half awake but still paralysed. These usually involve figure/s in the room but maybe just a 'sensed presence' or a seeing/feeling that something is on top of your chest - the 'mare' in nightmare comes from a word which means "one who leaps on, oppresses or crushes"

Some links:

http://watarts.uwaterloo.ca/~acheyne/S_P.html

http://www.dreamsnightmares.com/sleepparalysis.html

http://www.stanford.edu/~dement/paralysis.html
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