In the news

Does breastfeeding protect a woman against breast cancer? The evidence says yes.

This is the quote that really interested me:

The most likely explanation for the reduced risk is that lactation works through hormones to delay ovulation and the return of a woman's monthly cycles, Karen Collins, a registered dietitian and nutrition adviser to the group, said in an e-mail. It has long been known that the fewer menstrual cycles a woman has over the course of her life, the lower the risk of breast cancer.

As someone with endometriosis, the topic of menstrual cycles is also of interest, so when breastfeeding and menses collide in a research paper it really grabs my attention.