If you like dancing, dancing is a good way to lose weight! Don't study specially, jump when you have time! In fact, if you get married, just lose your stomach! 60 to 100 sit-ups before going to bed every day, plus about 40 back muscles (do you know how to make back muscles? Just lie on the bed, keep your arms and legs straight and lift them at the same time! Lift it slowly, put it slowly! Relax, take a hot bath and massage your waist after you finish!