What will decrease a person's risk for development of the bone-thinning disease known as osteoporosis? Smoking Weight-bearing exercises Loss of estrogen in females who are post-menopausal Diet poor in calcium and protein

To determine what will decrease a person's risk for the development of osteoporosis, let's analyze each option: 1. **Smoking**: Smoking is known to have a negative impact on bone health and increases the risk of osteoporosis. Therefore, smoking does not decrease the risk. 2. **Weight-bearing exercises**: Engaging in weight-bearing exercises helps to strengthen bones and improve bone density. This type of physical activity is beneficial in reducing the risk of osteoporosis. 3. **Loss of estrogen in females who are post-menopausal**: The loss of estrogen is a significant risk factor for osteoporosis in post-menopausal women. Estrogen helps to maintain bone density, so its loss increases the risk rather than decreases it. 4. **Diet poor in calcium and protein**: A diet lacking in calcium and protein can lead to weaker bones and increase the risk of osteoporosis. Therefore, a poor diet does not decrease the risk. Based on this analysis, the option that will decrease a person's risk for the development of osteoporosis is: **Weight-bearing exercises**.