Brains of Male and Female Sexes are Physically Distinct: Research

A new study suggests that men and women show differences in behaviour because their brains are physically distinct organs. Male and female brains appear to be constructed from markedly different genetic blueprints, the team says.

The differences in the circuitry that wires them up and the chemicals that transmit messages inside them are so great as to point to the conclusion that there is not just one kind of human brain, but two, according to recent neurological studies.
According to a review of recent neurological research appearing in this week’s New Scientist magazine, it is becoming clear that the brains of men and women show numerous anatomical differences.
Some of these divergences could explain a number of mysteries, such as why men and women are prone to different mental health problems, why some drugs work well for one sex but have little effect on the other, and why chronic pain tends to affect women more than men.