If you could make one - and only one - design change to the human body, what would it be? Specify male, female, or unisex as the scope of the change and explain the benefits.
Mine is unisex. It is a simple butt profound flaw that I desire to fix: Remove all capsaicin receptors from the sphincter ani.
Yes, the good doctor has been sampling too many spicy foods of late, and is paying the price.
Fire in the hole!
The overwhelming majority of people have more than the average (mean) number of legs. – E. Grebenik