Stage where you are clearly asleep sleep talking can

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Stage where you are clearly asleep, sleep talking can occur in this stage or any other later stage. 20 minutes
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Stage T hree: T ransition Stage Stage Three begins your descent into “slow wave sleep.” Delta Waves: (large, slow brain waves associated with deep sleep) begin appearing in stage 3 but are increasingly apparent in Stage 4.
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Stage Four: Delta Waves Stage of deep sleep characterized by Delta Waves. Stage when you are hard to awaken…but still aware of stimuli around you. Stage at which children may wet the bed or sleep walk. Also experience night terrors.
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Night Terrors Occur during late stage 4 sleep and are characterized by high arousal and an appearance of terror but are seldom remembered .
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R.E.M. Sleep (Paradoxical Sleep) After stage 4, your bodies cycles back to stage 3, stage 2, and into REM sleep. A Normal Sleep cycle lasts about 90 minutes.
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R.E.M. Sleep (Paradoxical Sleep) R.E.M.: rapid eye movement sleep, stage where vivid dreams occur. Known as Paradoxical because muscles are relaxed yet body is highly active. Heart rate increases, Breathing more rapid, eyes dart behind lids. Genitals become aroused during R.E.M. sleep even when dreams are not sexual in nature. As sleep cycle continues, R.E.M. sleep gets longer and longer.
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Brain Waves and Stages of Sleep
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So Why Do We Sleep? Most ppl will sleep for 9 hours if they could Sleep debt Decrease in work productivity Increase in auto accidents Suppressed immune system Alter metabolic and hormonal functioning Decrease in performance and creativity
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Sleep Function Theories: 1. Sleep protects 2. Helps us recuperate 3. Might help us grow
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Sleep Deprivation
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Sleep Disorders Insomnia: inability to fall asleep or stay asleep. 10-15 % of adults Sleeping pills and alcohol might make it worse Less REM sleep
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Sleep Disorders Narcolepsy : a sleep disorder characterized by uncontrollable sleep attacks often at inopportune times. Usually 5 minutes 1 in 2000 ppl R.E.M. sleep occurs at wrong time. Very little N.R.E.M. sleep goes directly to R.E.M. Cause- lack of neurotransmitter hypocretin
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Sleep Disorders Sleep Apnea: sleep disorder characterized by a temporary stoppage of breathing during sleep and consequent momentary awakenings. Often complained about as “snoring.” Often interrupts deep sleep stages leaving person feeling exhausted.
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Tips for Sleeping 1. Relax before bed 2. Avoid caffeine 3. A glass of milk 4. Regular cycle 5. Exercise regularly,but not in the late evening
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Warm Up – page 6 1. What is you Circadian rhythm?
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