Who knows... Maybe it's the same white/blue collar worker separation?
On the other hand - I also find it hard to believe that the only difference between the sexes is the body build. Based on my engineers' mindset it would quite surprise me if two bodies which look and work different were wired totally alike. Though this line of thought is quite out of fashion.
On the other hand - I also find it hard to believe that the only difference between the sexes is the body build. Based on my engineers' mindset it would quite surprise me if two bodies which look and work different were wired totally alike. Though this line of thought is quite out of fashion.