Take a look at the image below which shows grey matter used for intelligence in the brain of males and females. Looks like men have much more doesn't it and that is because they do.

Men have approximately 6.5 times the amount of gray matter related to general intelligence than women. The two brave men who are risking a life long absense of female sexual partners by publishing these findings are Richard Haier, professor of psychology in the Department of Pediatrics at University of California Irving (a longtime human intelligence researcher) and Rex Jung, a UNM neuropsychologist .

Those male chauvinists amongst the readership who wish to grab hold of this small morsel of hope they they may indeed be superior may leave now without reading the rest of the post.

Much to the disappointment of those males who have now departed the post, we know that women have similar intelligence to men so the question arises "How can this be?". The answer is that women compensate for this lack of grey matter with white matter. They have approximately 10 times the amount of white matter when compared to males. White matter is used to collect and assimilate pieces of intelligence into a collective whole. Whilst women have much less raw intelligence they are so much better at organising it and utilising what they have that it compensates for the lack of processing power. It also means that women have more natural ability in those tasks that involve integrating and organising pieces of information, such as language skills.

Not only do women have significantly less grey matter but is almost all concentrated in the frontal lobes. Men, on the other hand, have grey matter throughout the brain. This is the reason that women are more extensively cognitively impaired by frontal brain injuries.

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