Do You Know Why People Need Sleep

By Author: Isabel
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Have you asked a question-why do people need sleep? If people do not sleep for several days, what consequences will be caused on our physical and psychological?

Standing from psychological, now there are three different explanations for it.

First one is biological clock and the circadian rhythm. During the 24 hours in a day, the individual cyclical activity in their daily lives; when sleep, when to eat, when to work, when the row is almost always a certain order, and such order is almost by the individual physical operation of the decision. Such decisions as individual physiological role of cyclic life activities, called the biological clock.

The temperature in a day often has a significant change. Human body’ temperature also has a significant change. In the ambient temperature decreases and body temperature also reduces the circumstances, the individual will have a sleep needs. Daily changes of temperature generally around midnight to five o'clock the minimum period of time, human body temperature, also happens to be in this time, to a minimum. Therefore, to majority people from eleven o’clock to ...
... six o’clock following the morning is the best sleep time. Therefore also called on the biological clock rhythm

The second one is restoration theory of restore and conservation theory. Restoration theory and conservation theory are two theories to explain the need for sleep. By recovery on to say, sleep with a recovery function of energy and fatigue. And it often includes physical and psychological levels.

On the physiological level, the individual all activities in the awake, if you have been kept, not enough rest, regardless of conduction in the nervous system, muscles or glands in the operation, we can not achieve substantial perfection, can not be timely complete metabolism. Need to sleep, rest after physical exertion, like nutritional needs after consumption of dietary supplements, is the same reason. Person's physical, like a reservoir, the reservoir of water consumption to a certain extent, the outlet must be temporarily closed, or out of the water reduced, thus giving increased water storage reservoirs to maintain long-term water supply function. This level of recovery of physiological function, most occur in sleeping stage.

On the psychological level, sleep can help the individual to complete before the end of waking mental activity. Experiments in the psychology of learning has long been proven that exercise immediately after the sleeper, wake up there will be a good memory. The reason is that sleep immediately after exercise, for work not completed processing the message and continue to be completed during sleep. The recovery by such psychological effects, most occur in light sleep stage. Dreaming is a mental activity, and Dreams are often about the lives and day, even during the day can not solve the problem, the answer may be given in a dream, this can also be used as sleeping with a recovery of evidence. Research by psychologists and only in a shallow sleep phase will be a dream.

The third one is evolutionary theory. According to the theory of evolution claims, the individual in addition to sleep, the variety of animals including humans, the reason for the performance of a variety of different types of sleep patterns, mainly due process in the long-term survival evolved. Human sleep at night, and they have fixed locations, because the lack of nocturnal human capacity; To ensure safety, free from animal attacks, but eventually evolved first nest caves, and then building housing the ability to adapt.

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