Secret Testosterone Nexus Of Evolution !!link!! -

We think of T as just a muscle-builder. Biologists are now realizing it’s the hidden architect of civilization.

It is Testosterone.

As these males altered the physical world—creating weapons, walls, and wheels—they created a selective pressure. Suddenly, the males who couldn't raise their T levels in the face of a rival tribe got wiped out. Secret Testosterone Nexus Of Evolution