Building Bone Strength

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Sure, mountain biking is good for your health. But did you know a cycling-only fitness routine can actually be harming your bones?

About.com spoke with Michael A. Smith, M.D., senior health science specialist at Life Extension Foundation, Fort Lauderdale, FL, and James Ting, MD, FAAFP, board-certified Primary Care Sports Medicine physician at Hoag Orthopedic Institute, Irvine, CA, about bone density and what you can do to prevent vulnerability.