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Essay / Research Paper Abstract
A 4 page overview of the physiological stages of sleep. The author emphasizes that each of these stages, however, is susceptible to impact from a
variety of factors. When this impact occurs, sleep is compromised and health and welfare are at risk. Bibliography lists 5 sources.
Page Count:
4 pages (~225 words per page)
File: AM2_PPsleep3.rtf
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Unformatted sample text from the term paper:
The phenomena that we refer to as sleep occurs in relation to a collection of physiological, sociologic, and behavioral factors. Sleep is actually a series
of physiological cycles, however. Physiological cycles that can be delineated and defined. Dreaming occurs within one of those cycles. The importance of understanding the cycles of sleep
is more apparent when we recognize that sleep consumes an approximated one third of our lives (Appling, 1997). It is also directly related to many aspects of our health
and welfare. Appling (1997) identifies four stages of sleep which occur in a specific relationship to one another. Stage 1 is a
stage of light sleep. It is characterized by the eyes rolling slowly and the arms, legs and even the face slightly twitching. Stage 2 is a deeper level
of sleep but still just a light stage in comparison to the latter stages 3 and 4 which Appling (1997) classifies as deep sleep. He writes that in these
latter stages of sleep the individual experiences a decrease in temperature, pulse, and blood pressure (Appling, 1997). Muscles relax and the individuals begins a backward progression from stage 4
through stage 2 (Appling, 1997). It is during this period that the sleeper experiences REM sleep (Rapid Eye Movement sleep) (Appling, 1997). REM sleep is:
"characterized by dreaming, a profound decrease in muscle tone, and potential cardiac and respiratory instability" (Appling, 1997).
Each cycle of the sleep process is estimated to last approximately ninety minutes (Appling, 1997).
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