The particular easy to be hungry may be the activity is caused by the large amount, may also be the disease factors caused by, such as hyperthyroidism, diabetes and so on. 1. activity: sports or physical activity for a period of time to increase the crowd, the basal metabolism increased, energy consumption increased, there will be a stomach always hungry. 2. Hyperthyroidism: hyperthyroidism is due to excessive secretion of thyroid hormones, so that the body metabolism increases and sympathetic nerve excitation, can stimulate the digestive tract peristalsis strengthen, gastric emptying faster, always feel hungry symptoms. 3. Diabetes: diabetic patients because of insulin deficiency or insulin insensitivity, sugar utilization obstacles, can not provide the daily energy needs, so there will always be easy to hunger symptoms. Especially easy to be hungry may also be caused by other reasons, you can go to the hospital for examination, under the guidance of professional physicians to identify the cause of the disease, and follow the doctor’s instructions for treatment.