Pro-life advocates have argued for years that abortion increases the risk of breast cancer — due to hormonal changes during pregnancy which leave breasts more vulnerable to cancer. Despite their advocacy, the Department of Health and Human Services denies that there is any link. On Monday the Coalition on Abortion/Breast Cancer pointed to a new study which found a nearly 3-fold increase in the risk of breast cancer among Armenian women who had an abortion as yet another reason women should steer clear of the procedure.