Sleeping
Sleeping is considered one of the most important conditions that a person experiences during a full day (24 hours), where the person enters through sleep in a relaxed state in which the various body organs and organs recover until he regains his activity again.
During the sleep period naturally decrease the movement of the voluntary body, as it is less sensitive to the surrounding effects and different variables, and can not be classified as a situation in which the person loses consciousness, on the contrary, sleep is a different state of consciousness, as for the basic function that The creation of sleep for it is still under study and examination, but there is a strong opinion that sleep is created to regulate brain activity in humans, and to improve the various biological activities in the body.
Natural sleep hours
The average number of hours a natural person needs to sleep, relax and wake up is about eight hours, but the number of hours a person needs to sleep is different than the number of hours another person needs. However, the reality is that the number of hours a person needs Remains constant, although the number of hours a person sleeps on a particular night may differ from the number of hours he sleeps on another night, but the number of hours a person sleeps in a week or a month is almost constant.
In one study, two out of 10 people slept less than six hours a day, and one out of 10 people slept nine hours or more per night, all very natural people, and they may also be distinguished. The number of sleep hours needed by the body Is different from one person to another, and one of the most famous people who reported that they were sleeping a short time were Edison and Napoleon, while those who narrated their sleep for long periods, Einstein known for his long sleep, without disruption of creativity and giving.
The number of hours a person needs to sleep varies from one age to another. The older the person is, the longer the number of hours of sleep he needs, the more he or she reaches the age of 20. Progress in age and time, the nature of sleep is changing, as the sleep of the human being more anxious, and the easiest rest, and this is because the stages of sleep vary from one stage to another.