The biggest motivation is to like someone, thinking that if I lose weight, that person will be with you. When I lose weight, I can't keep running, thinking that after running, the person I like will wait for me at the finish line, and then I will have the motivation to run. Of course, there are many other factors, such as going to the store often and then the clerk said at a glance that there is no size, which is embarrassing. There is another person in the dormitory who has been wondering if he can eat.