This is because after eating too much the patient’s digestive system is heavily burdened, requiring the body’s blood to concentrate toward the gastrointestinal tract to help the gastrointestinal tract carry out digestive functions, so it will lead to redistribution of blood throughout the patient’s body, easily leading to a reduction in blood supply to the patient’s brain and heart, there will be a relative lack of blood supply to the brain, and the symptoms of dizziness will be manifested. Because of the heavy burden on the gastrointestinal tract, there may also be problems with nausea. Patients in this situation must be careful not to overeat in general, especially those with hypertension, diabetes, heart disease and cerebrovascular disease, and eating too much will increase the burden on the heart and cerebrovascular, easily causing myocardial ischemia and insufficient blood supply to the cerebrovascular, which can easily lead to acute cardiovascular and cerebrovascular problems.