1. Heavy moisture: Being in a humid environment for a long time will cause moisture to enter the body, which will lead to symptoms such as excessive oil on the face and cough, and will also reduce the metabolic function of the body, resulting in fat accumulation and thin belly.

2. Long-term sedentary: Sit down immediately after eating for a long time. The calorie intake is greater than the consumption, and the fat will accumulate in the abdomen, buttocks and other parts, which will also make the patient thin and fat.