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Sleep_cycle.jpg (original file)‎ (271 × 186 pixels, file size: 10 KB, MIME type: image/jpeg)

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There are five stages of sleep. Stage one through four are non REM sleep and stage five is Rem sleep. The cycle goes from one until four and then starts going backwards from four until two. After the second stage two we go into stage five and start REM sleep.

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  • Sleep Cycle

    There are five stages in the sleep cycle. These stages include non REM and REM sleep. REM stands...

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current07:06, April 5, 2015Thumbnail for version as of 07:06, April 5, 2015271 × 186 (10 KB)Ash204 (wall | contribs)
06:44, April 5, 2015Thumbnail for version as of 06:44, April 5, 2015271 × 186 (10 KB)Ash204 (wall | contribs)