Actually, exercise is possible. In sports, there are actually many effective ways to thin the chest. Here, swimming is recommended first. The best way to swim is freestyle. It is found that freestyle can consume 836 kilojoules of heat per 12 minute. As long as you exercise three times a week, the fat in your chest can be turned into muscle, making your chest more perfect. And you often swim, maybe the method is wrong, freestyle is ok, if the effect is not good, then give your chest a tight massage with ~ Southman after each swim, which can speed up the burning of fat and reduce recovery.