Thread: is it better to...
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Old Jan 31, 2006 | 06:17 AM
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Draconius
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If you sleep you should be sure to be in REM sleep for its maximum time.
Sleepers alternate between REM and NREM sleep four to six times a night, with each cycle lasting an average of 90 minutes, with an average range of 70 to 110 minutes.
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