Smarter? Well, when I wrote my Doctoral Dissertation I hadn't yet shaved my head but maybe knowing I was going to, deep in my genes, was a plus. I agree that we take more control of our lives and are less likely to be swayed by suspect arguments. Sexier? Of course. Who'd argue that one? Just rubbing my own hand over my just shaved head has a pleasant effect; It reaffirms I made the right decision and, after 15 years, I can stand by that decision.