Sleep Stages - Term Paper - Free College Essays, Term.
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Sleep Stages There are five stages of sleep each of us pass through each evening when we go to sleep. Please describe each stage. Then, view the Sleep Disorders video and match one stage of sleep with one of the sleep disorders described in the video, explaining the connection between the stage of sleep and disorder chosen.
According to The National Sleep Foundation last updated March 22nd, 2014 “ Studies confirm that on average adults need at least 7 to 9 hours of sleep to complete all stages of sleep. ” Also after further research newborns 1 month to 2 months old need 14 to 18 hours, Infants 3 to 11 months old need 13 to 16 hours, toddlers and children need about 11 hours, and teens need 9 to 10 hours.
The sleep cycle: A sleep cycle lasts about 90 minutes, and during that time we move through five stages of sleep. The first four stages make up our non-rapid eye movement.
Rapid Eye Movement (REM) Sleep: You generally enter REM sleep about 90 minutes after initially falling asleep, and each REM stage can last up to an hour. An average adult has five to six REM cycles each night. During this final phase of sleep, your brain becomes more active.
NREM Stages of Sleep. The first stage of NREM sleep is known as stage 1 sleep. Stage 1 sleep is a transitional phase that occurs between wakefulness and sleep, the period during which we drift off to sleep. During this time, there is a slowdown in both the rates of respiration and heartbeat.
Study suggests these sleep spindles help process both simple and complex motor skills we have learned. Stage 3 is the first slow-wave sleep. Your brain begins producing large, slow delta waves. Once a consistent pattern of delta waves are produce, you have moved into stage 4 sleep. This is a very deep sleep and your body is extremely relaxed.