Feeling particularly hungry when waking up in the morning is mainly due to the patient’s weak digestive function and excessive secretion of stomach acid at the same time. Patients with poor digestive function eat less when they eat and cannot convert food into nutrition, so the body absorbs less and is prone to hunger. In addition, excessive secretion of gastric acid in the stomach can also cause hunger, especially at night when sleeping, gastric acid is secreted to digest the food eaten at night, and in the morning there is still too much gastric acid stored in the stomach, which can also make patients feel very hungry. During the growth period, the patient’s digestive ability is faster, so it is easy to digest the food in the intestine, which will also produce hunger. Therefore, after waking up in the morning and feeling hungry, patients should not suddenly overeat, otherwise it will cause damage to the gastrointestinal tract and affect gastrointestinal health.