Weight-bearing exercises, such as walking, running, and resistance training, are most effective for improving bone density. These activities promote the development of bone mass by exerting forces that stimulate bone formation. Engaging in strength training and high-impact exercises help to enhance bone strength while reducing the risk of osteoporosis, especially in older adults. Consistent participation in these types of exercises, combined with adequate nutrition, is essential for maintaining optimal bone health throughout life and can significantly mitigate the risk of fractures.