Sleeping

Sleep is the most familiar in our daily lives one of the activities. Person's life, there are about 1 / 3 of the time is spent in sleep. When people in the sleep state, you can make people's brain and body to rest, rest and recovery. Daily work and help people learn. Science to improve sleep quality, is that people learn to work to protect life.

Sleep is per person per day are necessary. Good hypnotic sleep is to help improve the success of insomnia means and the necessary means, to avoid insomnia a serious threat to life and health. Most people's lives the life of sleep for more than 1 / 3. The exact definition of sleep, with the changing times and have different connotations.

Initially the French scholar said: sleep is due to internal body needs to make sense of events and sports activities suspended, given the right incentives can make an immediate awakening state.

EEG activity was people know that: sleep is due to the functional activity of the brain caused by animal physiological activity is low, given appropriate stimulation can reach a fully awake state.

And after a recent study of modern medicine generally that: Sleep is an active process, sleep is necessary to restore energy to the rest, there is a dedicated central management of sleep and wake and sleep when the brain is just a change of work, the energy been stored, is conducive to mental and physical recovery; and proper sleep is the best rest is to maintain health and strength of the foundation, but also a guarantee to obtain a high production capacity. Sleep the brain is connected to the stimulation and stimulation of nerve cells assigned to the appropriate cure (re information) needs to excitement (note) for the time being transferred to the original strength of the weaker excited nerve cells, those nerve cells by the body to take over most of the life activities, and to accept the original deal and respond to external stimuli excited nerve cells due to a higher degree of processing to prevent the stimulation without mutual interference which link performance to alleviate fatigue. The quality of sleep is not high enough degree of shielding is not sufficient to fully digest or sleep time to stimulate the phenomenon join. Excessive sleepiness is a morbid too long shielded. These are the neural control enough. Initiative in the activities due to reduced sleep, a person's physical recovery has also been corresponding.

Sleep is often a pleasant state of unconsciousness, usually occurs at night in bed and when we allow ourselves to rest. Compared with wakefulness, sleep, when to stop contact with the surrounding people, self-consciousness disappear, no longer able to control their own what to say or do. People who sleep in muscle relaxation, decreased reflexes, decreased body temperature, heart rate, blood pressure slightly decreased, slowed metabolism, gastrointestinal motility was significantly reduced. This time seems people are still asleep, passive, real or else, if a person made him sleep EEG, we will find, in sleep brain cells do not release the electrical pulse less than the awakening . This proves that the brain does not rest. As one of the hives at night, looks homing bees have a rest, but in fact all of the bees and honey in the brewing busy throughout the night.

Sleep (sleep) cycle students of higher vertebrates the emergence of a spontaneous and reversible resting state, the performance of the body's response to outside stimuli decreased and awareness is temporarily interrupted. Normal brain activity, and all higher vertebrates the brain, as always in alternating between arousal and sleep state. This alternative is the phenomenon of biological rhythms. Awakening, the body internally, increased sensitivity to external environmental stimuli, and can make a purposeful and effective response. Sleep on the contrary, the body less sensitive to stimulation, decreased muscle tone, reflex threshold increased, though still maintaining function of the autonomic nervous system regulation, but all the complexity of the higher nervous activity, such as learning, memory, logical thinking and other activities are can not be, and retain only a small number of events of special significance, for example, mice can be called to wake the sleeping cat; suckling lactating mothers cry so easily awakened. In addition to periodic addition of this feature, there are reversible and spontaneous sleep. The former refers to sleep outside or in vivo can be aroused by strong stimulation; which indicates the occurrence of endogenous sleep, although it is sometimes a certain extent by the environment and some chemical factors. The above three features help distinguish sleep and other sleep-like state, such as hibernation mainly caused by the lower ambient temperature, coma and lethargy are manifestations of sleep is not reversible. Hypnosis is induced by a hint of sleep-like state of consciousness to be hypnotized is not lost, but their behavior implied by hypnosis dominated. Some studies, periodically during sleep dreams occur, and with unique physical representation, some people think that dreams are independent of the wake and sleep outside the first three states. In fact, these three states are intrinsically close contact, such as prolonged awakening will lead to "compensatory" increase in sleep and dreams.

Sleep has always been a research topic of interest, because people's lives about 1 / 3 is spent in sleep, and sleep can restore the spirit and relieve fatigue. Since the early 20th century, with the analysis of EEG, sleep EEG showed that the special wave. 1952, and was found a short time during sleep, frequent, rapid eye movement, and accompanied by rapid low-amplitude brain waves. This important discovery led to the rapid development of sleep research. Have shown that sleep is an active process the brain active, not passive wakefulness cancellation; brain structures and neurotransmitters involved in many neurological development and progression of sleep (and thus to carry out the dream of physiology and clinical studies in the differential diagnosis of sleep disorders and treatment). But so far the origin of sleep, the occurrence and development of mechanisms, the physiological basis of phase transformation, and how to eliminate fatigue, sleep and other important issues are still not well understood.

With the accelerated pace of life in general, lack of sleep has become a common phenomenon in today's city dwellers, experts have warned that the health hazards of lack of sleep great and must not be taken lightly. Lack of sleep harm in the following areas:

1. Affect the brain's creative thinking

Researchers study suggests that the human brain to clear thinking, responsive, must have enough sleep, if long-term lack of sleep, the brain is not fully rest, it will affect the brain's creative thinking and ability to handle things.

2. Affect the growth and development of young people

Growth and development of young people in addition to genetics, nutrition, exercise and other factors, but also with growth hormone secretion to some extent. Hypothalamic growth hormone secretion and is a hormone that promotes bone, muscle, organ development. Because growth hormone secretion and sleep are closely related, that is, people asleep in the secretion of a large peak, then there are a few small secretion peak, while in non-sleep, growth hormone secretion. So, for young people to develop good, tall, sleep must be adequate.

3. Affect the health of the skin

The reason why a person's skin soft and shiny, is to rely on the subcutaneous tissue of the capillaries to provide adequate nutrition. Lack of sleep can cause skin capillary stasis, blocked circulation, making the skin cells do not have adequate nutrition, and thus affect the metabolism of the skin and accelerate skin aging, skin color appear dull and pale. In particular, black eye socket, and prone to wrinkles.

4. Lead to disease

Often lack of sleep, make people feel anxious worry, reduced immunity, which will lead to various diseases, such as neurasthenia, colds, gastrointestinal diseases. Lack of sleep can also cause blood cholesterol levels increased, making the chance of heart disease increased; the body's cells to divide more in sleep, lack of sleep or sleep disorders, may affect normal cell division, cancer cells which may produce mutations leading to cancer. In general, people of different ages every day, students should be required to sleep 8-9 hours of sleep a day adults need 7-8 hours of sleep.

5, lack of sleep can cause obesity

The study showed that: lack of sleep can cause the body eliminate LDL concentrations decreased. Consumers lipoproteins in the blood, a substance active in the system, has appetite-suppressing function, can affect the brain to make the decision whether to eat. Lack of sleep also can cause the body's appetite hormone levels rise. Appetite hormone is a substance secreted by the stomach, can cause people's desire to eat. When the human body which control the "power loss" of the department conflicts with each other, the brain's decision-making system may make the wrong decision.

If people can maintain a normal sleep time, it may not make your body's appetite regulatory chaos, which will remain in relatively normal weight range. The study also found that, in order to maintain the body's endocrine system is not disturbed, a night's sleep time should be maintained at more than 7 hours. In general, sleep enough people, not prone to hunger.

It seems, people want to prevent disease, eternal youth, in addition to maintaining a good mood in addition, adequate sleep, but also effective methods.

Sleep is a biological instinct, in sleep, muscle relaxation, reduced response to external stimuli, heart rate, respiration, excretion and other activities to reduce, will help restore function of various organs. The body's biological clock dominates the endocrine system, the release of various hormones. Which there is a growth hormone, its role is to promote muscle metabolism, to recuperate, to promote bone growth.

Childhood, this hormone present day less than the laws of the night, 13:00 to 5:00 between the release of growth hormone is almost three times during the day. Obviously, if the long-term infant sleep at night, will affect the normal physiological growth hormone secretion, growth and development is quite negative, especially for height greater impact.

Easy to aging adults often stays up late, then the performance of children with emotional instability, lumbar and leg foot pain is often said, do not love to walk, his eyes tired easily, and some children still susceptible to diseases such as bronchitis and rhinitis.

Constipation may also occur often stays up late, of course, that the impact on the body is very large.

Therefore, to healthy growth and development of infants and young children, parents should arrange to give them a regular schedule, to develop the habit of sleeping at night time, to ensure adequate sleep time.

New baby "Yeti" affect growth

New born infants can be said that regardless of day and night, wake up to eat, sleep fed until 4-5 months before gradually formed the law. To 7 to 8 months, 80% of infants during the day and wake up (even sleep it), night, close to 1 at the age of adult patterns of life.

The so-called "Yeti Lang" means sleeping during the day, night waking and crying children.

The baby itself, growth hormone secretion at night when sleeping more, to promote the growth of child height, moaning over time, the rate of increase in length will be very slow.

Baby Yeti addition to the biological clock has not yet turned to adult, there are other factors, such as environmental temperature and humidity, too cold, too hot, too stuffy and not all the children crying. Some babies must be fed a milk at night, if you do not feed on more than crying. Some baby diapers are wet, if not replace also crying. Others such as certain diseases (rickets, diaper dermatitis, etc.) may also cause the night crying.

Corrected to eliminate the incentive for the baby Yeti. Biological clock day and night for the children to gradually correct the reverse phenomenon, do not let the child sleep during the day too many times, too long, the children awake to make full use of sound, light, language, etc. tease him, and to extend the awake time; night will have to avoid excessive generate excitement without sleep or night terrors. Inside and outside the bedroom should be quiet, comfortable temperature.

Middle of the night to get rid of the habit to eat a meal and, if the disease should be treated. Children sleep timing is as follows: newborn 20 hours a day; 2 to 5 months of age 17 to 18 hours a day; 6 to 12 months of age 14 to 15 hours per day; 11 per day to 3-year-olds 12 to 13 hours; 3 to 7 year-old child 10 to 12 hours a day; 7 children over the age of 9 to 10 hours a day.

With all of the animals, who must ensure that the most basic physical needs, but also so-called "sleep eat and drink Lazard," nearly one-third of human life the time spent on sleep, sleep can be seen how important to us. For this reason, some people say: sleep is to one day of 1 / 3 of the time repair spiritual activities.

Person's sleep consists of two parts: REM and non-REM sleep. Human sleep is divided into two very important part of sleep when the eyelids when the eye showing the bottom of the two rules of the swing, this particular sleep called REM sleep. Another very quiet sleep, sleep eyes do not move, we called non-REM sleep. Both cover different health functions of sleep, all night engaged in a pattern of staggered, sleep medicine called sleep cycle. One night there will be four to five times the sleep cycle, non-REM sleep in Qianban Ye maintain more little late at night; but REM sleep is more and more to the rest of the night.

Non-REM sleep in Qianban Ye more, mainly with the back of the head after a day of ordinary people, great mental eliminate Mao, for all brain cells and brain tissue pressure and damage our biological clock will naturally induce sleep, so the brain Department of the temperature down into the repair stage, which is very important to maintain life. Sleep REM sleep late at night will be greater, it is relevant to the work and learning, when the day through a lot, whether good or bad the scene, should be included in the memory, while REM sleep is contained learning new things, integrated daytime mood and so on.

Sleep structure will change with age. Infancy to 10-year-old adolescent, REM and non-REM sleep about half and half, which represents the infant brain mature very quickly, the high activity levels, learning very strong, so the speed of memory and learning REM sleep may account for more. After 10 years the ratio between the two stabilized sleep, REM sleep about every day of the quarter of sleep time, and more in the rest of the night there, rather than REM sleep accounted for three quarters. To the middle-aged 60 years of age, REM sleep began to decrease, except on behalf of the physiological aging of the brain, the learning activities have begun to weaken down, the elderly also means less motivation, brains fixed not by much. If people watch the same can be told when to sleep, when to wake up. Human brain is external and internal key command, as long as people are awake, the brain activity can not be stopped. The brain temperature represents

From the morning wake up the brain's activity, the temperature gradually rising higher and higher display activity, brain activity when the evening arrives the most excitement, at the moment to remind the human brain should be nursed back into time. If the brain can not get appropriate rest, it may cause many physical and psychological problems.

What people should be getting as much required  The length of time required for sleep life is different with age, there is a natural change, a sleep from infancy big inch, nearly 16 hours of sleep a day; adolescence, burn the midnight oil to meet a series of examinations, the need 8 to 9 hours; to wake up to sleep little older an average of six hours.

Have the opportunity to sleep so the body repair muscle and other tissue, replace aging or dead cells, and so on.

Sleep the brain to organize and store memories. Some people think that dreaming is a part of this process.

Sleep to reduce the energy consumption, therefore we only need three meals a day instead of one day or four meals five meals. Since the night we all can not do anything, not as "off their" to save energy.

Science Online: "lack of sleep cat interested to adenosine," a text that, to the brain of sleep may be a "charge" approach, and adenosine, a brain needs a break signal: "adenosine secretion reflects brain cell activity can , and thus the concentration of the chemical substances in the brain feel a sharp increase in mean running out of energy reserves, temporarily closed. "awake brain adenosine levels will rise and fall sleep.

What we do know is that a good nap, wake up you will find the world become more beautiful. Brain and body have been restored, ready to greet the new day.