Will not rebound. In the last two days of menstruation, try to do some exercise to burn the body fat, and the most important thing is to burn most of the fat accumulated in the abdomen. You can do yoga for 20 minutes to half an hour every day, and then walk for about 15 minutes, which helps your body burn fat. One week after the menstrual period, you should insist on doing aerobic exercise for more than half an hour every day to lose weight. During this period, our metabolism is accelerating, so doing exercise can stimulate the decomposition of fat more, and the effect of losing weight will be faster.