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All The Four Stages Of NREM (Non-Rapid Eye Movement)

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NREM (non-rapid eye movement) sleep occurs during first 90 minutes of sleep and is passing time through the four stages of the NREM cycle (Feldman, 2015). All the stages of NREM sleep each have specialized sleep-wave patterns occurring to what stage of sleep one is in. Lasting only a few short minutes, stage 1 sleep is the transition period between wakefulness and sleep (2015). Many college students create the golden “winding down effect”, eyes drooping and phasing in and out of “I was not sleeping; I just closed my eyes for a little” during stage 1. The level of difficulty to awaken from sleep increases exponentially when entering stage 2 of the NREM cycle. The brain waves in this stage develop slow, regular patterns with “…momentary interruptions
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