Osteoporosis is a condition characterized by weak and brittle bones, making them more susceptible to fractures. It often develops silently over many years, with no symptoms until a fracture occurs. Risk factors include aging, hormonal changes, and a lack of calcium and vitamin D in the diet. Women are particularly at risk after menopause due to decreased estrogen levels. Preventing osteoporosis involves a combination of a healthy diet, regular exercise, and lifestyle changes. Weight-bearing exercises, such as walking or dancing, can help strengthen bones. Early diagnosis and treatment can significantly reduce the risk of fractures and improve quality of life.