Daphna Joel

And when the scientists went looking properly, they found something even bigger.

A neuroscientist called Daphna Joel at Tel Aviv University analyzed brain after brain and published it in one of the most respected scientific journals in the world.

Her finding...

There is no such thing as a male brain or a female brain.

And they demonstrate, I think, very, very, very clearly that human brains are not dimorphic.

Daphna Joel did this 20 years ago.

Many neurobiologists demonstrate that.

there's more variation between individual brains than there are between categories of male and female or even old and young.