If a certain chemical arrives on the scene at a critical moment of a fetus' growth, then that particular function can be permanently compromised and impaired for life. Without testing for these toxins, a mother has no idea what might be poisoning her baby.
When it comes to breast cancer and other reproductive cancers, we now the seed that are planted during that tender womb time as well as the breast-feeding period can be
setting a course in motion. This could predispose girls to breast cancer as adults (and for boys, it's prostate and testicular cancers). As mothers, we must be aware of these dangers so we can take all possible precautions to protect our unborn children. It is not an impossible task but it will take vigilance and commitment. But then again, our children deserve it.