Some people skip breakfast for two purposes. One is to control weight. Because I am too fat to lose weight, I eat less. The other is that I don't have time in the morning, so I don't eat after sleeping for a while. But for whatever purpose, skipping breakfast is not a good habit. The reason is: 1 Why do people eat three meals? The biological clock of gastrointestinal tract runs according to three meals a day, and gastric juice and bile are also secreted according to three meals. Because after a night's rest, the gastrointestinal tract has been emptied and the stomach is full of stomach acid. At this time, food is needed to neutralize stomach acid. If you don't eat it, soaking the gastric mucosa in gastric acid environment for a long time will cause damage to the gastric mucosa, and gastritis, gastric ulcer and even more serious stomach diseases will easily occur for a long time. 2. If you don't eat breakfast, the incidence of gallstones will be higher. In the investigation, it is found that the occurrence of gallstones is related to risk factors such as women not eating breakfast and obesity. If you don't eat breakfast, your gallbladder won't contract and empty well. After long-term cholestasis, it is easy to have sediment-like bile, which will form stones after deposition, which is also a hazard of not eating breakfast. 3, come together in the morning, start a day's work, the brain should be active, the body should be active, you need blood sugar, you need energy, don't eat breakfast at this time, blood sugar can't come up, the energy of this day is not particularly good, the brain works, and work efficiency may also be affected. Besides, skipping breakfast is like missing a meal. In fact, people will be hungry before noon. Many people will eat more at noon, not only not losing weight, but also gaining weight. 4, do not eat breakfast, nutrition will not be in a good balance, in the long run, you may get some chronic diseases, and even affect the overall immunity of the body. Nowadays, many immune diseases, including tumor diseases, are related to tight work rhythm and skipping breakfast. Therefore, breakfast is the most important of three meals a day, so we should eat less at night, because some people stay still after dinner at night, and they are very tired all day after eating, lying on the sofa to sleep and rest, and some people go to bed early, eat late, eat too much dinner and gain weight, so breakfast should be the most important.