Final answer:
Weight bearing exercises such as walking, running, and weightlifting help increase bone mineral density and reduce the risk of bone fractures.
Step-by-step explanation:
Weight bearing exercises such as walking, running, and weightlifting help reduce the risk of bone fractures because they help increase bone mineral density. When we engage in weight-bearing activities, the bones experience stress, which triggers new bone formation and increases in bone mineral density. This makes the bones stronger and less likely to fracture.
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