Weight-bearing exercise plays an essential role in reducing the risk of osteoporosis by stimulating bone density and strength. Activities like running, weight lifting, and resistance training encourage bone remodeling through mechanical stress, leading to increased bone mass. This type of exercise promotes the activity of osteoblasts (bone-forming cells) while inhibiting osteoclasts (cells that break down bone). Consistency in weight-bearing activities is crucial for maintaining bone health, particularly in populations at higher risk of osteoporosis, such as older adults and postmenopausal women.