Women's brains are fours years younger compared to men. ©30
There are two possible explanations for this.
A. Women do not use their brains as much so it lasts longer or
B. Women use their brains much more than men, so like muscles it lasts longer.
B seems to be the most obvious choice.
There is a caveat. Nikki Haley lowered her perceptive IQ more than 50 points to appeal to Trump supporters.
So far it has not returned to previous state and may remain in current state.
C123
