Women who were breastfed may have lower cancer risk

In fact, there's a 17 percent decrease in breast cancer risk. The one thing to note is that the findings did not carry over for firstborn women.

The study also found that breastfed women showed no altered breast cancer risk according to their mother's age at childbirth.

More studies will be needed to determine if the length of time a mother breastfeeds also impacts her child's later breast cancer risk.

You can read more in the May edition of "Epidemiology."