The Stages Of Sleep

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Ask your neighbor what they enjoy doing, and maybe a decent amount may have mentioned, "sleep." Sleep is a vital part of and universal need. It is considered a motor to our skills and abilities to gather and process information. Mellissa, Writer of The Guardian of Scotland writes, "An average night 's sleep is eight hours, 1/3 of a day. If you live, seventy-five years, that 's twenty-five years asleep, or 9,125 days." For one-third of our lives we are asleep, but being asleep has its purposes. We constantly hear that every night we need to have an approximate of eight to nine hours of rest, but what is the reason for it and what happens to our bodies while we go in for a close for the night. Sleeping regularly can improve the livelihood. This …show more content…
Stage three lasts a few minutes thought the electroencephalographic shows high-voltages, and slower wave activities. But the last stage of non-rapid eye movement lasting the longest of the four stages, from twenty to forty minutes. Usually, REM sleep happens 90 minutes after you fall asleep, after the four stages. The first period of REM usually lasts 10 minutes. Each of your later REM stages gets longer and can go on for as long as an hour. At this point of the night, your heart rate and breathing become heavier. "This phase of REM is defined by the presence of desynchronized (low-voltage, mixed-frequency) brain wave activity, muscle atonia, and bursts of rapid eye movements", (Colten 34-36). Unlike the other phases, your muscles become loose and your brain is more active giving gateways to dreaming and is affiliated with REM sleep. Adults who spend 20% or less in REM sleep, babies can spend up to 50% of their sleep. Body system changes that occur during sleep. Through the stages of sleep-specific bodily functions are changed through NREM sleep and REM sleep such as brain activity, heart rate, blood pressure, nerve activity, airway resistance, and body

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