Classic method: get up and run every morning, and come back without eating or drinking after running; Do push-ups and sit-ups during the day. You can also play basketball (or learn to play basketball). Don't eat all the time when you feel hungry ... eat less junk food; Go running at night ...

The most effective way: let your family collude with the doctor to tell you what serious illness you have, and then you spend every day in anxiety to ensure that you can lose weight in two months.