Osteoporosis is a condition that makes bones weak and brittle, commonly seen in older adults. As people age, calcium loss accelerates, and bone density decreases, increasing the risk of osteoporosis. This is especially common in women after menopause due to lower estrogen levels. Preventative measures include adequate calcium and vitamin D intake, regular exercise, and avoiding smoking and excessive alcohol consumption. If diagnosed with osteoporosis, doctors may recommend medication and lifestyle changes to reduce the risk of fractures.