Unperturbed by Testosterone

Q: The crux of your book has to do with the differences between the male and the female brain. Talk about how hormones shape the brain in the womb.

A: We know now that the female brain is the beginning of all brains, up to eight weeks. And at eight weeks, the tiny testicles of a male fetus start pumping out huge amounts of adult-level male testosterone, which marinates those brain cells. And that stimulates the growth of certain cells and circuits in the brain that have to do with sexual pursuit behavior. It also acts as a sort of weed-killer in other brain areas that haven’t all been worked out yet.

But the female brain is left to continue to progress, unperturbed by testosterone.

...excerpt from an interview with
Dr. Louanne Brizendine
author of the book,
"The Female Brain."