here comes what i would call the 'design factor'
scientists figured ...and this is my theory or opinion too:
The males brain is larger in volume, whereas the female brain lacks in volume but has a higher grade of connectivity, making it likewise equal if it
comes to measuring IQ.
as a result we see us ladies solve multi-threading things better than men, but have a problem if it comes to straight logic, which is the man's
domain for simply being so much inunfluenced by other 'threads'.
The study being posted by the OP, has a specific side-effect.
in my theory a larger brain with more cells (men) has a specific ammount of spare-cells, right ?
so go on guys ..drink yourself under some table if you dare, the cells you loose due to alcohol are easy with enough spare
remember if YOU are drunk (as the men) WE (as the women at your side) will confiscate your car-keys and drive you home, with all the lack of driving
skills you (men) always complained about us (women)
and given that picture the 40% plus do not matter much, anymore, don't you think ?