Christopher Coogan, MD, professor of urology at Rush University Medical Center, says about 10 to 15 percent of the population will develop kidney stones in their lifetimes, small hard mineral deposits formed in the kidney that can be painful to pass, with white men ages 40 to 60 the most likely to have kidney stones. Dr. Coogan says those who already have had a kidney stone have a 50 percent chance of developing another kidney...