Child, 15 years old, obese, overeating and sweating. Obesity is bad for human body, so we must lose weight. The guidance suggests controlling diet, eating less fat, greasy, fried and sweet food, eating more vegetables and fruits, reducing the amount of dinner every day, increasing the amount of exercise, and making the daily consumption greater than the intake as much as possible. Only in this way can we gradually lose weight and ensure good health.