There are three positions for women's bust, which are very easy to accumulate fat, one is armpit, the other is upper back, and the third is breast. At the same time of reducing fat by aerobic training, the fat in armpit, upper back and breast will be reduced, so from the perspective of chest circumference, the circumference will be reduced. As for the reduction of breast cups, it is related to the reduction of fat. Indeed, many women don't want this to happen, but after careful analysis, for obese women, your chest is also in the obesity range, so it is normal for your chest to decrease, but at the same time, we can train and increase the chest muscles, and then promote the development of the breast through scientific massage, so as to have a full chest.