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And yet a quick google search shows that there are indeed gendered differences in how much blood flows to the brain, although not linked to athletic performance.

"... women's brains seem to be more active than men's brains, in terms of blood flow ... [w]hile there was more blood flow in women's brains overall, male brains had more blood flow in certain areas, including the visual and coordination centres of the brain." [0]

> It would not be unreasonable to assume that the ability to get blood to the brain of men is significantly reduced compared with women because of its constant redirection to inflating the penis.

I'm pretty sure that is a real fact, or very close to one. The blood in the penis had to come from somewhere, and could easily be causing reduced brain functionality.

[0] https://www.sciencealert.com/women-s-brains-are-more-active-...

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