Understanding Bone Density After 50
Dr. Rivka C. Lomedico
Orthopedic Spine Surgeon · Jun 22, 2026
FIG. · CORTICAL BONE CROSS-SECTION
If you're over 50, your doctor has probably mentioned a bone density scan — and the result can feel like a verdict written in numbers you don't recognize. The good news is that bone is living tissue. It responds to how you move, what you eat, and the choices you make every day. Understanding your numbers is the first step to protecting your skeleton for decades to come.
What a Bone Density Scan Actually Measures
A DEXA scan reports a T-score, which compares your bone density to that of a healthy young adult. It's a snapshot of how strong your bones are right now and a useful predictor of fracture risk.
- Normal: A T-score of -1.0 or above.
- Osteopenia: Between -1.0 and -2.5 — lower than ideal, but not yet osteoporosis.
- Osteoporosis: -2.5 or below, where fracture risk is meaningfully elevated.
Why Density Declines With Age
Until your early thirties you build more bone than you lose. After that the balance gradually tips the other way, and for women the drop in estrogen at menopause accelerates the loss. This is normal — but the rate of decline is very much within your control.
Habits That Preserve Bone Strength
- Move with load: Weight-bearing and resistance exercise signal your bones to stay dense.
- Feed the framework: Adequate calcium, vitamin D, and protein give your body the raw materials to rebuild.
- Protect what you have: Avoid smoking, limit alcohol, and review medications that affect bone with your physician.
Your bones are not set in stone. With the right habits, most people can slow — and sometimes reverse — the losses that aging brings.
