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We all know what sleep looks like, but how many people know how sleep works. Also how many people have stopped to think how sleep works. In this paper I will explain how sleep works. This is what you can see during sleep.
If possible, the person will lie down to go to sleep. The person's eyes are closed. The person doesn't hear anything unless it is a loud noise. The person breathes in a slow, rhythmic pattern. The person's are completely relaxed. If sitting up, the person may fall out of his or her chair as sleep deepens.
During sleep, the person occasionally rolls over or rearranges his or her body. This happens approximately once or twice an hour. This may be the body's way of making sure that no part of the body or skin has its circulation cut off for too long a period of time. If you attach an electroencephalograph to a person's head, you can record the person's brainwave activity.
An awake and relaxed person generates alpha waves, which are consistent oscillations at about 10 cycles per second. An alert person generates beta waves, which are about twice as fast. During sleep, two slower patterns called theta waves and delta waves take over. Theta waves have oscillations in the range of 3. 5 to 7 cycles per second, and delta waves have oscillations of less than 3. 5 cycles per second. As a person falls asleep and sleep deepens, the brainwave patterns slow down.
The slower the brainwave patterns, the deeper the sleep the harder to wake up. A person deep in delta wave sleep is hardest to wake up. REM sleep is when you dream. If you wake up a person during REM sleep, the person can vividly recall dreams. If you wake up a person during NREM sleep, generally the person will not be dreaming.
You must have both REM and NREM sleep to get a good night's sleep. A normal person will spend about 25 percent of the night in REM sleep, and the rest in NREM. A REM session (a dream) lasts five to 30 minutes. In conclusion sleep seems to be more than meets the eye, so next time you go to sleep now you know what is really going on inside. It is alot more complicated then one would think.
Free research essays on topics related to: cycles per second, waves, rem sleep, rem, wake
Research essay sample on Cycles Per Second Rem Sleep
