Some facts about the female breast:

• breast development begins when girls reach puberty, about 10 - 11 years of age
• breast are made-up of fatty (adipose) tissue, which is held together by the skin - they do not contain muscles
• breasts contain Cooper's ligaments, which together with the skin, give support and firmness, with age these breakdown, loose elasticity and the breasts sag - that is why it is so important to maintain the quality of your breasts skin - with the Nancy K. Brown Bust and Neck Toning Creme 
• exercise will not increase breast size
• exercise will tone the breasts, by strengthening the pectoral muscles, found below the adipose breast tissue
• the average cup size, worldwide, is B
• many women have asymmetrical breasts - one breast being larger than the other.