 And, you know, you can go to and see here one of our tests we have. You can, you know, go to our catalog and get our test for urine. And one of the things that you find in urine, if you have infections, is a lot of white blood cells. And you can actually see fungus and bacteria and all that kind of stuff. White blood cells are out of whack, aren't they? Yeah, exactly. And so...