By HANA KAHLEOVA Tuesday is World Osteoporosis Day, and one number deserves more attention than it gets: one in two women over 50 will break a bone because of osteoporosis. Bone loss speeds up as estrogen falls during menopause. Yet in the rush to treat midlife weight gain with the newest drugs, bones rarely come up. I think of a patient who sat down and named the drug before she said anything else. She was in her early 50s, and she wanted a GLP-1, the weekly injection everyone seems to be on now. She had gained weight around her middle that nothing would touch, and she had not slep...