It is no exaggeration to say that a third of a person’s life is spent in bed. It is clear that sleep is a very important part of people’s lives. However, according to market research in six cities in China, the prevalence of insomnia among adults in a year is as high as 57%. On the one hand, many people suffer from insomnia; on the other hand, many people often stay up late, stay up all night and waste precious sleep time recklessly. What does sleep really mean to human beings? Is it a waste of our precious life, or is it an essential part of our life? March 21 is World Sleep Day, which was established to draw attention to the importance of sleep and the quality of sleep, and to remind people to pay attention to sleep health and quality. Concern for the quality of sleep is concern for the quality of life, and concern for sleep is concern for health. Suwen? The “Shanggu Tianzhen” says: “Eat and drink in a disciplined manner, get up and live in a regular manner, do not make delusional labor, so you can be in shape with the gods, and the end of its heavenly life, and a hundred years to go”. It can be seen that since ancient times, our people have attached great importance to the role of regularity in the health of the human body. The importance of sleep is generally the following: (1) to eliminate fatigue and restore physical strength; (2) to protect the brain and restore energy; (3) to enhance immunity and rehabilitation; (4) to promote growth and development; (5) to delay aging and promote longevity; (6) to protect the mental health of people; and (7) to facilitate skin beauty. But how to maintain a good sleep? There is a big deal here. First, the sleep time in spring and summer should be late to bed and early to rise (about 5-7 hours of sleep per day), early to bed and early to rise in autumn (about 7-8 hours of sleep per day), early to bed and late to rise in winter (about 8-9 hours of sleep per day). This is in line with the law of the four seasons growth and collection. The average person sleeps for a short time on sunny days and for a long time in bad weather. It is best to get up before sunrise, not too late. Whether you are a “night owl” or a “early to bed, late to rise” type, you should find your biological clock. On time, you can improve the efficiency of sleep and rest. Traditional health believes that we should sleep the midday nap, that is, the son (11:00 at night to 1:00 a.m.), noon (11:00 to 13:00 during the day) two hours of the body needs to rest properly. Chinese medicine believes that the time of the ziwu, yin and yang, the extreme Sheng and decline, the body’s qi and blood yin and yang is extremely unbalanced, must want to sleep quietly, in order to wait for the gas to recover. Modern research also found that 0:00 to 4:00 at night, the body’s organs power down to a minimum; 12:00 to 1:00, is the most fatigued time of the body’s sensory nerves, so the quality and efficiency of ziwu sleep are good, in line with the health reasoning. According to statistics, the elderly can reduce the incidence of cardiovascular disease, cerebrovascular disease, disease prevention and health care significance of the meridian sleep. Second, sleep sleep to the so-called sleep to, refers to the direction of the head and feet position when sleeping. Try to avoid the north head and sleep. The thousand gold to formula? Dao Lin health nature” proposed: “head do not sleep north, and the wall north also do not bed”. Lao Lao Heng Yan? Bed” also pointed out: “the head do not sleep in the north, said to avoid the ground”, ancient health practitioners in this point is basically the same. That the north is water, the yin in the yin position, the main winter main cold, fear of the north head and sleep Yin cold gas directly hurt the body’s Yang, damage to the House of God. Clinical investigation found that the head north foot south and lying elderly, the incidence of cerebral thrombosis is higher than other lying direction. Foreign data show that the head north foot south and lying, prone to induce myocardial infarction. Third, sleeping posture body sleep like a bow effect, to the right side of the burden is light. It is not appropriate to sleep prone or head buried in the quilt. Especially for the elderly supine, prone, left side are not suitable, to the right side of the best. Research shows that “sleep like a bow” can be just right to reduce the force of the earth’s core on the human body. As the human heart is mostly on the left side of the body, lying on the right side can reduce the pressure on the heart, conducive to gastric emptying, while avoiding hands on the chest near the heart, to avoid waking up because of nightmares. For women to lie on their side is better than supine and prone. Prone can make the facial skin blood circulation is affected, resulting in increased wrinkles. Supine on the women’s pelvic blood circulation is not good, prone to various menstrual diseases. Pregnant women should take the left side, especially into the middle and late pregnancy, four, sleep environment The bedroom should not be too large, an area of less than 20 square meters. The bedroom should be dark, keep quiet, try not to sleep with the lights on. Avoid placing too many electrical appliances in the bedroom to ensure that the human brain rest without too much interference. In addition, do not wear various items: necklaces, bracelets, rings, watches, dentures, cell phones and other items to sleep. The ancient people of China summarized their sleep experience as “sleep ten taboos”. A taboo supine; two taboo worry; three taboo sleep before the annoyance, four taboo sleep before eating; five taboo sleep sleep speech; six taboo sleep sleep on the light; seven taboo sleep open mouth; eight taboo night sleep over the head; nine taboo sleep when the wind; ten taboo sleep sleep on the fire.