Bone decay, medically known as osteoporosis, is a condition characterized by weakened and fragile bones, leading to an increased risk of fractures. Preventing bone decay involves several key strategies. Adequate intake of calcium and vitamin D through a balanced diet rich in dairy products, leafy greens, fortified foods, and supplements, when necessary, supports bone strength. Regular weight-bearing exercises like walking, jogging, and resistance training help stimulate bone growth and improve bone density. Avoiding smoking and excessive alcohol consumption, which can weaken bones, is crucial. Additionally, maintaining a healthy body weight, practicing good posture, and minimizing the risk of falls through safety measures can significantly reduce the likelihood of bone decay and promote long-term bone health. Regular check-ups and bone density screenings can also aid in early detection and proactive management of bone-related issues.