Breastfeeding Reduces Risk Of Breast Cancer For Women Who Delay Childbirth
: "Breastfeeding can offset the increased risk of invasive breast cancer for women who had their first full-term pregnancy after the age of 25, a study led by researchers at the University of Southern California (USC) suggests.
'Breastfeeding may have a protective effect that negates the increased risk of breast cancer associated with late pregnancies,' says Giske Ursin, M.D., Ph.D, associate professor of preventive medicine at the Keck School of Medicine of the University of Southern California. 'As more women may choose to delay pregnancy until after 25, it is important to note that breastfeeding provides protection against both estrogen and progesterone receptor positive and negative tumors.'
Breastfeeding appears to have a protective effect regardless of when women started giving birth, Ursin says. This is important since having many children was only protective among women who gave birth early, she says. Giving birth after age 25--the average age that women in the U.S. first give birth, according to Census data--was associated with increased risk of hormone receptor negative breast cancer."