Regurgitation and vomiting after staying up late is caused by factors such as vegetative nerve dysfunction and elevated blood pressure. Staying up late belongs to a kind of bad habits, will affect the body’s natural routine, reduce the body’s immunity, is a common cause of various diseases. Some people themselves suffer from gastrointestinal neurosis, should minimize the occurrence of staying up late. Prolonged late night will lead to the human body’s plant nervous system dysfunction, and the human body’s gastrointestinal system is controlled by the plant nervous system, so it will induce digestive system symptoms. Many people will have excessive secretion of gastric acid, gastric peristalsis dysfunction, resulting in regurgitation, nausea, vomiting and other symptoms. Staying up too late will be in a state of overstress, resulting in abnormal blood vessel contraction, and may even induce an increase in blood pressure. Once the phenomenon of high blood pressure, not only will appear dizziness, nausea, at the same time will appear regurgitation performance.