"to put it simply, a male's corpus callosum is like a two lane country road, and a woman's is like a four lane super highway. So women have better wired brains. Did you know that women can and do use both sides of their brains at the same time. This is why women can multi-task so easily, and explains many others mental abilities unique to women. Males have less "wiring" between brain lobes and can't use both sides simultaneously. Males are more trapped in one side of the brain, with the other brain lobe less developed as it is in women. "