Many people will have this experience, when after eating a meal feel very sleepy, this situation is formed mainly for the following two reasons: 1, physiological reasons, because after eating a meal the gastrointestinal tract needs a lot of blood to digest food, so the blood in the human body will be redistributed, resulting in a relative reduction in blood flow to the heart and cerebral vessels, relatively insufficient, so that patients appear dizzy, sleepy symptoms, especially the usual blood Patients in a high-fat, high-coagulation state are more likely to appear. 2, the reason why patients are very sleepy after meals is mainly related to diet, such as patients eating very high-fat food, which will lead to blood in a sticky state, which will lead to dizziness, very sleepy and weak performance.