Practicing breastfeeding helps mothers lose weight after pregnancy and stimulates the uterus to return to its previous position before pregnancy.Also, breastfeeding helps in decreasing the risk of type 2 diabetes, breast cancer and ovarian cancer. A study about the association between duration of lactation and incidence of type 2 diabetes, was conducted with two groups of mothers in the Nurses' Health Study (NHS). For the first group, without history of gestational diabetes, the risk of developing type 2 diabetes was reduced 4% for each additional year of breastfeeding. For the second group with gestational diabetes, the risk of developing type 2 diabetes was reduced 12% for each additional year of breastfeeding.
Another advantage for breastfeeding is decreasing the risk of breast cancer among breastfeeding mothers. There is an association between breastfeeding and breast cancer, and the longer women breast feed the more they are protected against breast cancer. The researchers found that the risk of breast cancer decreased by 4.3% for every 12 months of breastfeeding, and 7% for each birth. Further, many studies reviewed linked breastfeeding and the reduction in the risk of ovarian cancer. Specifically these studies concluded that the women who breastfeed had 21% less risk of ovarian cancer compared to mothers who never breastfed.