Osteoporosis is a condition that causes bones to become weak and brittle, making them prone to fractures from falls or even mild activities like bending over or coughing. It commonly affects the hip, wrist, and spine. As people age, bones naturally lose density and their ability to remodel, but in osteoporosis, this process is more severe, making bones much weaker. While osteoporosis affects both men and women of all races, white and Asian women, particularly those who are older and postmenopausal, are at the highest risk.