1, chest wrapping will inhibit lung activity.
2. If you are still exercising, especially aerobic exercise, it will directly affect the cardiopulmonary function, and it will hurt your heart and lungs for a long time.
3. Because fitness needs comprehensive exercise, there are many blocks of pectoralis major (pectoralis major and pectoralis minor), and the pectoralis major is divided into three parts according to its position, inside and outside, and different exercise parts are also different.
As for the thin chest, if there is fat accumulation, do more aerobic exercise and the body fat will come down. If you want to make your breasts stronger and better, you have to train them systematically. If you don't understand, you have to find someone to guide you.
Then, if you exercise more comprehensively, your arms will be thicker and more coordinated, and your chest will not be particularly big, which is called contrast. I think your problem is not thin chest, but bodybuilding.