This kind of obesity should be psychologically prepared. Eat four-fifths of the normal amount every dinner, don't eat any snacks, walk five kilometers every day, stand or walk back and forth in your spare time, drink Tieguanyin tea for a long time, and sleep only seven hours every day for three years to ensure that your obesity will be reduced. In order to prevent your obesity from rebounding, I will reduce your original appetite by one fifth after I lose weight.