Health & Safety Mammograms should start at age 40, hormone therapy for menopause is safe, studies find 9:05am May 05, 2024 by Allison Aubrey Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2024 NPR. To see more, visit https://www.npr.org. 300x250 Ad 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate