I only bring up this topic because a female friend of mine (non-Okie) asked my opinion.

She thought northside women seemed to 'take better care of themselves' but probably had more time to do so. Southside women seemed to be more genuine and less into the material aspects of life and trivial pursuits.

I would imagine the health aspects of the northside would apply to both men and women. For example, Great Plains Coca-Cola in Oklahoma distributes far more diet products to northside stores vs. regular high-sugar products on the southside. I'm really reaching there but you get the idea.