Daily habits can alter the shape, appearance, and health of the breasts. Research by Jonette Keri, a University of Miami dermatologist, says that chronic smoking decreases the number of nutrients and oxygen that goes to the skin, accelerating the process of cell death that results in deeper flaccidity and wrinkles on the chest. Your breasts will experience certain normal changes while nursing your baby. Problems sometimes arise with the breasts and nipples during lactation. Find out what changes are normal and which ones could be problematic. Taking care of your breasts can help you avoid and keep certain problems under control so that you and your baby enjoy the benefits of breastfeeding. Breasts are one of the biggest attractions of the female body, so it is crucial to take care of them. However, the skin of the breasts is very prone to stretch and lose firmness, as well as an area where stretch marks may appear.