Thread:User talk:Nebuchadnezzar/BBC show about the anthropological development of humans & the body/reply

Haven't seen it, but it sounds in line with much of what I've read. Though I don't put a whole lot of stock in testosterone sampling -- I'm guessing they were salival samples and they weren't out there giving spinal taps to skateboarders. Testosterone is the precursor to a number of neurotransmitters and the most reliable way to test for it in the brain is by lumbar puncture, but that's obviously not an option in many cases.