In this fast-paced social environment, many people have “difficult to sleep at night, can not get up in the morning” trouble, which is the most direct result of the drastic reduction of sleep time. The reduction of sleep time is easy to cause the vagus nerve excitation, leading to wall cells and G-cells secrete a lot of gastric acid, can also lead to hypersecretion of adrenocorticotropic hormone, promote gastric acid and gastric protein to increase and reduce the blood flow of the stomach, resulting in the decline of the stomach’s self-repair ability, the gastric mucous membrane thinning, and ultimately triggered by ulcers and superficial gastritis. How much sleep is appropriate? Generally speaking, newborns should get at least 20 hours of sleep a day, infants and young children 15 hours, preschoolers 10 hours, adults 8 hours, and the elderly 5 to 6 hours. This is only a rough figure, and the difference in sleeping time of each person is also related to various factors such as personality, health status, working environment, labor intensity and sleeping habits. Some people are used to sleep with their hands under the head, which will not only affect blood circulation, causing numbness and soreness of the upper limbs, but also make the abdominal pressure rise, over time will cause the stomach food and gastric juices flow back into the esophagus, the formation of “reflux esophagitis”. Long-term stimulation of the esophagus by reflux can even lead to malignant changes in the esophagus. In addition, many people at noon in the unit nap, often choose to “lie” on the table for a while, but it is easy to oppress the stomach, increase the burden of peristalsis of the stomach, resulting in flatulence of the stomach, reducing digestive capacity, affecting the absorption of nutrients, delayed emptying of the stomach, gastric mucosal barrier was damaged, leading to gastritis. What should be the correct sleeping position? Physiologically speaking, should be lying on the right side, limbs natural bending. This can make the whole body muscle relaxation, not oppression of the heart, the digestive system can be normal activity, good metabolism. In addition, sleep should not cover the head, so as not to affect the whistle, wake up dizziness, resulting in poor energy. For the midday rest in the unit of the office workers, it is best to lie down on the office sofa, the building benches on the nap, or prepare a folding bed for sleeping. If these are difficult to realize, you can bring a neck pillow, lean back in the office chair and squint for a while. After a week of sleeping late and waking up early, many people like to make up for sleep on weekends or holidays, and sleep until dark. However, just while catching up on sleep, our poor stomachs have to suffer the damage of stomach acid in silence. Because the stomach wall cells, G-cells and other glandular cells are constantly secreting digestive juices, and there is no food in the stomach for digestion, which is bound to disrupt the regularity of gastrointestinal function, and over time, the gastrointestinal mucosa will be damaged, easily induced gastritis, ulcers and dyspepsia and other diseases. Then the night sleep is seriously insufficient, can we use the noon time to rest? There is a saying, “If you don’t sleep at noon, you will collapse in the afternoon”. Napping, is a good habit for physical and mental health, because people in a day and night in 2 natural sleep “peak”, the main “peak” in the midnight more than 2:00, secondary “peak” in the About 2:00 pm, which indicates that the nap is in line with the law of sleep and can supplement the lack of sleep in the evening. But especially need to emphasize is: should not sleep immediately after meals. Just ate lunch, the stomach is full of food, digestive function is in motion, such as this nap will affect the gastrointestinal tract digestion, is not conducive to the absorption of food, long-term this will cause gastric problems, but also affect the quality of the nap.