The so-called lying direction refers to the direction and position of the head and feet during sleep.
Tang Liang said, try to avoid lying in the north. "A thousand dollars is important, and the Taoist forest nourishes nature" puts forward: "Don't lie on the north with your head up, and don't sleep on the north wall." "The Old Man's Constant Words: Sleeping" also pointed out: "Don't lie in the north first, that is, avoid the earth." Ancient health experts basically agreed on this point. It is believed that the north is dominated by cold in winter, and the north is afraid of lying down in cold, which directly hurts the human body Yuanyang and damages the house of Yuanshen.
2. Sleep time
It is advisable to go to bed late and get up early in spring and summer (about 5-7 hours of sleep every day), go to bed early and get up early in autumn (about 7-8 hours of sleep every day), and go to bed early and get up late in winter (about 8-9 hours of sleep every day).
In sunny days, people usually sleep for a short time, and in bad weather, people usually sleep for a long time. Those "night owls" or "people who go to bed early and get up late" should find their own biological clocks. Regular work and rest can improve the efficiency of sleep and rest.
Traditionally, taking a nap means that the human body needs proper rest at noon (at night 1 1 to morning 1) and at noon (at day 1 1 to 13). Chinese medicine believes that at the meridian, yin and yang meet, which is extremely prosperous and extremely declining, and the yin and yang of qi and blood in the body are extremely unbalanced, so you must lie still and wait for the recovery of qi.
Modern research also found that at 0: 00 to 4: 00 at night, the power of various organs of the body dropped to the lowest; From noon 12 to noon 1, it is the most tired time of human sympathetic nerves, so the quality and efficiency of meridian sleep are good, which conforms to the principle of health preservation.
Sleep posture
Sleeping like a bow is effective, and lying on your side is light. Experts believe that it is not advisable to sleep on your stomach or with your head buried in the quilt, especially for the elderly. It is not suitable to lie on your back, stomach or left side, and it is best to lie on your right side. Studies have shown that "sleeping like a bow" can just reduce the force of the center of the earth on the human body.
Because the heart of the human body is mostly on the left side of the body, lying to the right side can reduce the pressure on the heart, which is conducive to gastric emptying, and at the same time avoid putting your hands near the chest and heart to avoid waking up from nightmares.
For women, lateral lying is better than supine and prone. Prone will affect the blood circulation of facial skin and increase wrinkles. Lying on your back is not conducive to female pelvic blood circulation, and it is easy to cause various menstrual diseases. Pregnant women should lie on their left side, especially in the middle and late stages.
4. Sleep environment
The bedroom should not be too big, and the area should not exceed 20 square meters. The bedroom should be dark, keep quiet and try not to turn on the light to sleep. Avoid placing too many electrical appliances in the bedroom to ensure that the human brain will not be disturbed too much during rest. In addition, don't wear necklaces, bracelets, rings, watches, dentures, mobile phones and other items to sleep.