The Greeks were obsessed with the mathematically perfect body. But unfortunately for anyone chasing that ideal, we were designed not by Pygmalion, the mythical sculptor who carved a flawless woman, but by MacGyver. Evolution constructed our bodies with the biological equivalent of duct tape and lumber scraps. And the only way to refine the form (short of an asteroid strike or nuclear detonation to wipe clean the slate) is to jerry-rig the current model. "Evolution doesn't produce perfection," explains Alan Mann, a physical anthropologist at Princeton University. "It produces function."
With that in mind, I surveyed anatomists and biologists to compile a punch list for the human body, just as you'd do before buying a house. Get out your checkbook. This one's a fixer-upper.