Because when you’re dead inside, it eventually works it’s way to your outside.
Ha! I have the impression that it’s their arrogance. They look in the mirror and say to themselves-”Gee, I’m SO beautiful that I don’t need any help.”
So they don’t comb their hair, wear perfume or make-up, etc.
I work with female professors and they’re all like that. Several will ONLY wear dirty, wrinkled clothes and don’t do personal hygiene!
I think there’s is one exception.