Final answer:
Weight bearing exercises, like walking and weightlifting, help reduce the risk of bone fractures by increasing bone mineral density.
Step-by-step explanation:
Weight bearing exercises, such as walking, running, or weightlifting, help reduce the risk of bone fractures. These exercises increase bone mineral density, which means that the bones become stronger and less prone to breaks. By placing stress on the bones, weight bearing exercises stimulate the bone cells to produce more minerals and strengthen the bone structure. As a result, the bones become denser and more resilient.
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