I recently signed up with 23andMe, a company that can tell you, based upon a saliva sample, a remarkable amount of information about your health risks, traits, drug responses, carrier status and ancestry. The second highest health risk for me is (was) prostate cancer, at 51.1%, or nearly triple the average risk. Out of 12 markers for prostate cancer risk, I had 10 indicating higher than normal risk. It's a fascinating service. They nailed my prostate cancer risk, which makes me pay attention to the others identified, like heart disease, thromboembolism, and arthritis.