Breast cancer used to be a disease of older women. Screening with mammograms is not recommended under age 40. But now the Feb 27 issue of the Journal of the American Medical Association (JAMA) reports a near doubling in the rate of metastatic breast cancer in women age 25–39 between 1976 and 2009. The rate has been increasing slowly but steadily, and shows no sign of leveling off.
These days, young mothers of small children are facing mutilating surgery, debilitating chemotherapy, and even death. Yet there has been no corresponding increase in older women.