Mayo Clinic Study Observes Normal Aging Process Lowers Breast Cancer Risk

... Normal aging of breast tissue lessens breast cancer risk, reports a new study by Mayo Clinic Cancer Center researchers published in the Nov. 15 issue of the Journal of the National Cancer Institute.As most women get older, and especially after menopause, the milk-producing glands (lobules) shut down -- a process known as lobular regression, or involution. [click link for full article] ...