What would it take greasy ?
You won't look at a simple poster, my word isn't enough, named studies won't cut it, apparently. What would be enough information for you to accept what is, after all, the lived experience if just about all of us?
Male or female we are all fully aware that, absent illness, injury or other unusual element, from a very young age boys are faster and stronger than girls; girls are more flexible, have better balance than boys. We all know this. We all live this.
As young adults we know this. Young women have to be very aware of this at all times.
Ás we age those differences remain.
We all know this.
It is a universal lived experience.