Osteoporosis is a condition in which your bones become weakened and brittle. It occurs when removal of old bones occur at a faster rate than formation of new bones. Although anybody can develop osteoporosis, it is more common in older women of white or asian race. Your bones become so brittle that even a small fall can cause a break. It is a silent disease. You may not even know you have the disease until you fall. Taking in adequate amount of calcium, vitamin D and regular exercise can prevent one from getting the disease.