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Old 16-10-2013, 05:41 PM
Thunder Bow Thunder Bow is offline
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Join Date: Feb 2013
Location: Arizona
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Everyone will feel a "jerk" or quick spasim before falling asleep. It is a group of large brain cells that all fire at once just before falling asleep. It is perfectly natural and it means you are falling asleep. It might be a evolutionary response to scare off predators before falling to sleep.
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