Were you born between 1938 and 1971? Then there’s a chance your mother was prescribed a certain hormone drug to prevent miscarriage. If she was, you’re at increased risk for a host of health problems – including breast cancer.

It was a miracle drug. A way for a woman prone to miscarriages to carry her baby full-term. To give birth to a healthy baby.

To become a mother.

Which, back in the years when the drug was prescribed, was the dream of most women: motherhood.

While the ‘60s produced...