Sleeping after dinner is usually harmful to the digestive system, the endocrine system and the nervous system, as well as the circulatory system. The most harmful is the digestive system. Sleeping immediately after dinner without exercise will increase the gastrointestinal burden, which will lead to excessive secretion of gastric acid in the long run, causing gastric ulcers and duodenal bulb ulcers and other clinical symptoms such as abdominal distension, abdominal pain, constipation, acid reflux, heartburn, etc., and will also lead to habitual constipation. Sleeping after dinner is also harmful to the endocrine system, which will lead to endocrine disorders in the long run, and the excessive intake of calories and calories, without timely exercise, will lead to a sudden surge in blood sugar, which will lead to hyperlipidemia and hyperglycemia over time. It can also lead to circulatory system diseases. Sleeping after eating dinner can cause the contents of the digestive tract to compress the coronary arteries, resulting in insufficient blood supply to the coronary arteries, which can lead to coronary heart disease over time. For the nervous system, it can lead to insomnia, dreaminess and other plant nerve dysfunction.