 Everybody ought to do it once a year. Here's why. That cancer marker I told you about that this patient had, it's supposed to be less than 38, and hers is 185. Supposed to be less than 38, hers is 185. Now, you ought to get a cancer pound done, and maybe you had one done three years ago, and the number was 16. 16's a good number. Nobody's got zero. Nobody's got zero. Why nobody knows? Because we're all fighting cancer every day. No one has zero on the cancer markers. No one does.