Female physicists, engineers, nerds, etc, tend to be bald, fat or have a disastrous appearance that they're not even aware of.

It's not perception, it's just reality.

A female brain that works all the time like a male brain adapts to producing more testosterone. Testosterone has physiological effects on the entire body.

Once a female engineer wanted to cheat her husband with me.

I wanted so hard to yell at her face "you're becoming bald and your acne disgusts me", but I couldn't.

Otherwise she was fine, but the engineer life was turning her into a man.