A few years ago, I had the privilege of participating in anatomical dissections alongside medical students, and let me tell you: Open up a human body, and you will be very surprised by what you see. Nothing is as perfectly clean and clear as anatomical illustrations suggest. The body is murky. Muscles don’t neatly separate for you in order to display their various parts. What lies beneath the chiseled beauty that is a six-pack, to cite one example, is wet and messy.