Which part is thinner? If it is waist, it is recommended to do hula hoop exercise. If you are thin, don't sit for half an hour after dinner. Eat breakfast, eat less dinner, and it is best not to eat after 9 o'clock. Eat less greasy food, desserts, snacks and carbonated drinks, and do more exercise such as walking and dancing, especially before going to bed at night, voluntary movement for 3 minutes. You can lose weight by persisting slowly, which is harmless to your body and not easy to rebound. Develop good habits for a long time and your skin will get better.