If you want to increase or decrease your bust size, the exercises for both are similar. The only difference is that, if you feel your bust Prolongz measurement is too large, you should do the exercise fairly rapidly. While if you are too small in the bosom, you should do them slowly and deliberately.There are no muscles in the breasts themselves. They consist mainly of the mammary gland and fat. The breasts are held in position by skin and by the fibrous tissues which connects the bosom to the pectoral muscles. http://www.healthcaresdiscussion.com/prolongz/