Do you know what happens to a person when he sleeps and what is the importance of sleep? Why do we sleep? Sleep is necessary for life and there is a sleeping effect on the brain. Let's take a look at the importance of sleep and the phenomena that occur during sleep and answer why we sleep by Nazim al-Qirbi - February 22, 201420734 Why Sleep Sleep Sleep Lack Sleep Sleep Sleep is a basic component of human life that can not live without it. Researchers estimate that the average human spends one third of his life asleep. Many people think it is a necessary habit that only enables us to relax the body and brain and rejuvenate. But research has revealed that sleep has far deeper dimensions than we would think affect the psychological and physical aspects of man. The researchers concluded from these effects that lack of sleep is a real risk that may lead to death sometimes. In this regard, we will present the most important secrets concerning sleep, which are unknown to the vast majority. Many people may think that sleep is a long period of time, short and short of happening, but sleep time is a time when the works and functions in the human body. Contents [hide] 1 Why do we sleep? 1.1 Sleep effect on the brain 1.2 Sleeping phenomena 1.3 Sleep cycles 1.4 Lack of sleep Why sleep? Sleep is essential for life and vitality. Research has shown that neighborhoods that have been deprived of sleep in laboratories, for example, have died and that people who suffer from insomnia and lack of sleep have health effects that threaten their being. In another study conducted by the American Cancer Society, the quality of life and health of people with sleep deprivation is about 30 percent lower than those who sleep regularly for 7-8 hours. - Sleeping helps the brain get rid of the toxins that form when it works, a recent US study suggests. It is known that the human brain works as long as the latter remains awake. Sleep also gives the mind greater energy to strengthen memory, understand phenomena and learn. This habit makes the mind record the information it received during waking up and remember it more quickly. - Sleeping phenomena Many people are unaware that sleep causes some body weight loss due to sweating and breathing. There is also a slight increase in weight due to the expansion of the vertebrae to reduce the pressure of the body weight. Add to this a decrease in the number of heart rate and blood pressure because the body is in a relaxed state does not need to pump a lot of blood. Sleep also affects the activity of the limbs as it paralyzes temporarily to prevent the human response to what is happening in his dreams. For example, this phenomenon prevents you from walking during your sleep. Research has also shown that sleep has an effect on eye twitching, low body temperature and increased abdominal gases due to muscle relaxation and increased collagen production, which can maintain skin purity and health. All these phenomena highlight the real value of sleep and that it is a component of a high degree of importance for human life. Sleep cycles The period of sleep in a person is divided into periods. Each period extends over 90 minutes. The cycle begins with light sleep followed by deep sleep until it ends again with light sleep. This means that the person will wake up actively if it is in the period of light sleep and will be difficult to wake up if it happened during the period of deep sleep. In order to avoid this problem, each of us should not sleep a number of sessions, consisting of 90 minutes, one and a half hours, three hours, four and a half hours, etc. No one will have a problem getting up. Lack of sleep Lack of sleep has serious side effects on human health. It first affects its immune system and makes it susceptible to disease quite easily. We do not mean only mild diseases, but it can even lead to cancer, and God forgive you. Sometimes it comes to death if the lack of sleep is great. When sleeping well, we wake up and feel refreshed and alert for our daily activities. If sleep affects our senses and performance, sleep affects how we look, feel and perform on a daily basis and can have a significant and effective impact on the overall quality of life. How much sleep do we really need? We need at least eight and a half hours and ten hours, an average of nine hours and a quarter of an hour of sleep per night to renew the effectiveness of the body and mind for the next day. Lack of sleep leads to the body having no time to complete all the stages necessary to repair muscles, unify memory and release hormones that regulate growth and appetite. Then we wake up less willing to concentrate, make decisions, or engage fully in school and social activities