In the current fast-paced social environment, many people have the problem of “difficulty sleeping at night and not getting up in the morning”, which most directly leads to a sharp decrease in sleep time. The reduction of sleep time is likely to cause the vagus nerve excitation, leading to a large number of mural cells and G cells secretion of gastric acid, and also lead to hyperadrenocorticotropic hormone secretion, resulting in an increase in gastric acid and gastrin and reduce the blood flow in the stomach, which leads to a decrease in the ability of the stomach to repair itself, the gastric mucosa thinning, and eventually lead to ulcers and superficial gastritis. So how long is the right amount of sleep? Generally speaking, newborns should get at least 20 hours of sleep a day, infants about 15 hours, preschoolers about 10 hours, adults about 8 hours, and the elderly 5 to 6 hours is enough. This is only a general figure, the difference of sleep time for each person is also related to a variety of factors such as personality, health status, work environment, labor intensity and sleep habits. Some people are used to sleeping with their hands under their heads, which not only affects blood circulation, causing numbness and soreness in the upper limbs, but also increases abdominal pressure, which over time can cause food and gastric juices to flow back into the esophagus, forming “reflux esophagitis”. The reflux stimulates the esophagus for a long time and can even lead to the malignancy of the esophagus. In addition, many people take a nap in the unit at noon, often choose to “lie” on the table for a while, but it is easy to compress the stomach, increasing the peristaltic burden of the stomach, resulting in gastric distention, reducing digestive capacity, affecting nutrient absorption, delayed gastric emptying, the destruction of the gastric mucosal barrier, leading to gastritis. And what should be the correct sleep position? In terms of physiology, you should lie on your right side and bend your limbs naturally. In this way, the whole body muscles can be relaxed, not to compress the heart, the digestive system can be normal activities, good metabolism. In addition, sleep should not cover the head, so as not to affect breathing, wake up dizzy, resulting in poor energy. For the noon break in the unit of office workers, it is best to lie down on the office sofa, the bench in the building to take a nap, or provide a folding bed for sleeping. If these are difficult to achieve, you can bring a neck pillow, in the office chair to squint for a while. After a week of late to bed and early to rise, many people like to catch up on sleep on weekends or holidays, a sleep until dawn. However, at the same time as catching up on sleep, our poor stomach can only silently endure the damage of stomach acid. Because the stomach lining cells, G cells and other glandular cells constantly secrete digestive juices, and there is no food in the stomach for digestion, this is bound to disrupt the regularity of gastrointestinal function, over time, the gastrointestinal mucosa will be damaged, easily induced gastritis, ulcers and indigestion and other diseases. So the night sleep is seriously inadequate, can we use the noon time to rest? There is a good saying, “no sleep at noon, afternoon collapse. Nap, is a good habit for physical and mental health, because people in a day and night there are 2 natural sleep “peak”, the main “peak” at 2:00 midnight, the secondary “peak” in This means that napping 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 digestion of the gastrointestinal tract, is not conducive to food absorption, long-term this will cause gastric disease, but also affect the quality of naps.