Reasonable diet and exercise. First of all, we should reasonably arrange three meals a day, eat more vegetables and fruits, eat well in the morning, eat well at noon, eat less at night, drink a cup of warm boiled water or honey water in the morning, and eat meat at noon or morning. As for sports, we can go out to run, jump rope, do sit-ups, dance and so on in the morning and evening. There will be no good effect in the short term, and only long-term persistence can see the effect.