Deep sleep is a part of sleep, accounting for only 25% of the total sleep time. Deep sleep is also called "golden sleep". Deep sleep is a part of sleep, accounting for only 25% of the total sleep time. Deep sleep is also called "golden sleep". People's sleep at night is generally repeated for 5-6 weeks, and each sleep cycle is about 60-90 minutes. According to the changes of brain wave, muscle wave and eye movement during sleep, the sleep cycle consists of slow eye movement cycle and rapid eye movement cycle. Non-rapid eye movement sleep can be divided into four stages: light sleep, light sleep, moderate sleep and deep sleep. Entering REM sleep time is considered as continuing the next sleep cycle after the end of the sleep cycle. Research shows that shallow sleep and shallow sleep, which account for about 55% of the total sleep time, have little effect on relieving fatigue, while intermediate sleep, deep sleep and active sleep that enter deep sleep have great effect on relieving fatigue.
In deep sleep, cerebral cortex cells are in a state of full rest, so it plays an important role in relieving fatigue, restoring energy, improving immunity and disease resistance. But this deep sleep only accounts for 25% of the total sleep time. Therefore, the evaluation of good or bad sleep can not only look at time, but more importantly, look at quality. In order to improve the quality of sleep, it depends on the length of deep sleep. In sleep science, "deep sleep" is the deep rest of your brain after you fall asleep. On the night of sleep, you first go into a shallow sleep, then naturally go into a deep sleep, and then wake up alternately. People can dream in light sleep, but not in deep sleep. Deep sleep is also called "golden sleep", which is usually called "golden sleep" and "golden sleep".
How to get into deep sleep quickly determines sleeping and getting up, while sleeping and trying to get up. This will help you fall asleep and get up quickly. Temporary exercise after getting up, 20 to 30 minutes of walking, running, cycling and other sports can make you more energetic during the day. At night, people will be very tired and fall asleep more easily. If you want to go into deep sleep, you can relax 20 to 30 minutes before going to bed. You can listen to music or watch TV and take a bath. Don't take a nap during the day. They will affect the quality of sleep at night. Buy a good mattress and pillow (such as a small and soft healthy pillow). People spend one-third of their time sleeping, so it is worthwhile to buy a good pillow. Use a fan to block the noise, and use a good shutter to block the sun. This is a very simple method, but it can effectively avoid being awakened by noise or light in the morning. Eat light food at night and avoid foods containing fat or high protein. Experiments show that foods containing fat are very bad for sleep. Try not to drink coffee, tea or coke in the afternoon. These drinks contain caffeine, so they work long hours and stay awake at night. Avoid alcohol and tobacco before going to bed. Affect the quality of sleep, easy to induce midnight flood.
People who are at risk of deep sleep deprivation should think clearly, react quickly and get enough sleep. Long-term lack of sleep will affect the brain's creative thinking and ability to deal with things unless the brain gets enough rest. Growth hormone is a hormone secreted by hypothalamus, which promotes the development of bones, muscles and organs. Because the secretion of growth hormone is closely related to sleep, that is, there is a big secretion peak after people fall asleep, and then there are several small secretion peaks, and the secretion of growth hormone decreases in non-sleep state. Therefore, teenagers should develop well, be tall and sleep well. Lack of sleep will lead to stagnation of skin capillaries, blocked circulation, insufficient nutrition of skin cells, affect skin metabolism, accelerate skin aging, and make skin look dull and pale. Especially dark circles are prone to wrinkles. Frequent insomnia will reduce anxiety and immunity, leading to neurasthenia, colds, stomach diseases and other diseases. Lack of sleep can also increase blood cholesterol levels and increase the possibility of heart disease.
Lack of sleep will lead to the decrease of protein concentration. Protein is an active substance in the blood system, which can suppress appetite and affect the brain's decision to eat or not. Lack of sleep can also cause an increase in the concentration of appetite hormones in the human body. Appetite hormone is a substance secreted by the stomach, which can cause people's desire to eat. It is more painful than some people to know that sleep diseases can't sleep normally. For example, in terms of the most common causes of insomnia, insomnia can also be said to be a kind of sleep disease. Below I will tell you some sleep disorders and related risks. Usually, after the lack of clear reasons or the elimination of possible causes of insomnia, there are still insomnia symptoms. There are three main types: psychophysiological insomnia, idiopathic insomnia and subjective insomnia. The diagnosis of primary insomnia lacks specific indicators, mainly the diagnosis of rejection. It also includes insomnia, sleep-disordered breathing and sleep-disordered movement related to physical diseases, mental disorders and drug abuse.
Long-term insomnia may lead to chest pain, palpitation, unstable blood pressure and peripheral vasodilation disorder of cardiovascular system. The digestive system is characterized by constipation or diarrhea and bloating. The exercise system shows neck and shoulder muscle tension, headache and low back pain. Emotional adjustment ability drops, easy to get angry or in a bad mood. Men often have symptoms such as impotence and female sexual dysfunction. Narcolepsy means sleeping too much during the day. This too much sleep is not caused by lack of sleep or mental disorders such as alcohol, drugs, physical illness and depression. At present, the etiology is not clear, but it is often related to psychological factors. No matter what the occasion, patients often feel sleepy and have various levels of sleep that cannot be refused. Too much sleep has caused significant pain, social functions such as occupation and socialization, and the quality of life has declined. There are also changes in cognitive function, such as approximate memory decline, thinking ability decline, and ability to learn new things decline.
Sleepwalking is usually called "asymptomatic", which means getting up suddenly in sleep and then waking up, knowing nothing about the activities during sleep. (william shakespeare's Hamlet, Sleepwalking, Sleepwalking, Sleepwalking, Sleepwalking) Sleepwalking does not happen in dreams, but in three or four deep sleep stages of sleep, focusing on the night before. So sleepwalking usually occurs in the first two to three hours after falling asleep. Some children's sleepwalking is related to psychosocial factors. Regular obstacles in daily life, environmental pressure, anxiety, fear, disharmony in family relationship, bad parent-child relationship, nervous study, poor exam results, etc. Are related to the occurrence of sleepwalking. Sleepwalking is obviously a sudden state of consciousness. The patient loses contact with the surrounding environment, and the patient seems to live in a private world. The patient is sometimes very excited and even talks a lot of nonsense, so it is difficult for people next to him to understand what he is saying. The patient seems to be engaged in very meaningful activities. This kind of activity is often a symbolic representation of patients' repressed painful experience.
Night vision refers to a disease characterized by frequent crying and even staying up late caused by breastfeeding infants under 1 year old, colds, fever and surprises. Children's night scenes are not only children's sleep behavior, but also can show the autonomic nervous system and sleep disorders after falling asleep, such as sudden awakening, sitting, fear, shouting, extreme fear and so on. The typical manifestations of night performances are sudden screaming, crying, stopping crying during sleep, or crying on time, staying up late, extreme fear, sweating, shortness of breath and rapid heart rate. Usually, when you wake up, you have no memory of the night scene. Quiet during the day, with fever, vomiting, diarrhea, thrush, sores, trauma and other manifestations. Because the number of attacks is uncertain, it usually occurs every few days or dozens of days or days. Nightmares are generally called ghost beds, which refer to screaming in fear while sleeping. Or there's something on your body that can't move. It is often used to describe terrible things that have been experienced.
When you suddenly wake up, your muscles and nerves are awake and can't move when you are not awake. This phenomenon is called nightmare. In other words, people who often wake up because of depression and intense sleep will dream of depression and dyspnea, which are mostly caused by overwork, indigestion and excessive tension in the cerebral cortex. Mainly because of the role of mental factors. Listen to exciting stories, watch exciting movies before going to bed, or let children fall asleep in a threatening way through improper education. In addition, the air in the dormitory is dirty and overheated. The bedding is too thick and the chest is under pressure. Respiratory ventilation caused by nasopharyngeal diseases. Overeating at dinner causes bloating and paroxysmal hypoglycemia. In addition to the above knowledge, there are still many secrets to be solved in human sleep. For example, scientists have to solve the origin of dreams, and many people, such as the Da Vinci Sleep Method, work according to human sleep. Da Vinci's sleep style is unacceptable to many people, but it is still the choice of sleep style, which is due to the lack of deep sleep.