April 4, 2013 | 2 minute read

Breastfeeding provides numerous benefits to babies, including preventing many illnesses. Often overlooked is the benefit moms get from breastfeeding their babies.

Now for the first time, a study published yesterday found that women who followed AICR’s recommendation for breastfeeding reduced their risk of premature death from all diseases.

The study, featured in Cancer Research Update, found that mothers who breastfed their babies for at least six months had a 17 percent reduced risk for early death compared to women who did not breastfeed at all. Even those who breastfed for a shorter duration had about a 13 percent lower risk for early death. Breastfeeding linked to lower risk for early death from both cancer and cardiovascular disease.

We’ve known, from AICR’s expert report and its updates, that lactation reduces breast cancer risk for mom, but this evidence shows it can also help prevent early death. Although the researchers in this study did not discuss why breastfeeding may lower death risk, we do have some ideas as to how it helps lower risk for breast cancer.

1. The longer women breastfeed, the fewer menstrual cycles they have and therefore have reduced lifetime exposure to hormones, especially estrogen, that influence breast cancer risk.
2. Breast tissue is shed during lactation and for mature cells, there’s programmed cell death. Both decrease cancer risk as cells with potential DNA damage are shed or die.

This is the first study to look at the association between breastfeeding and mortality in the mother. The researchers say more studies need to be done to confirm these findings.

Most moms do want to breastfeed their babies as long as they can, but it can be very challenging to maintain without support. Find help, tips and suggestions for successful breastfeeding at womenshealth.gov.