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Explain resistance training and bone density as you would to a capable student, in 3-4 sentences.

# Resistance Training and Bone Density When you perform resistance training (like lifting weights), you place mechanical stress on your bones, which triggers specialized cells called osteoblasts to build new bone tissue. This process, called bone remodeling, makes your bones denser and stronger over time—think of it like how muscles grow in response to being challenged. Weight-bearing exercises are particularly effective because bones adapt to the forces placed on them, following a principle called Wolff's Law. Regular resistance training can help prevent osteoporosis and maintain skeletal strength throughout your life, especially important as natural bone density declines with age.