Hyperphagia is a strong desire to eat food, eating food volume increased significantly, the factors that cause hyperphagia are disease, mental and psychological aspects, physiological factors, etc.. The main reasons are: 1, disease: diabetes, diabetes is a hyperglycemic disease caused by insulin abnormalities, the main symptoms are increased food intake, eat more, easy thirst, drink more water accompanied by thinning. Diabetes is treated by the principle of combining dietary control, eating less, exercising more and medication. hyperthyroidism, also known as hyperthyroidism, can also cause symptoms of hyperphagia. 2, physiological factors: including heavy physical labor, high exercise intensity, physical exertion, fast digestion of food can cause an increased appetite, children during the growth period may also increase food intake and hyperphagia. 3, mental and psychological: mood The mood is particularly good or stimulated by the mood is particularly low will cause hyperphagia.