Worried about low T? Maybe you should be more worried about high T. Evolutionary anthropologists at Duke University are persuaded that a drop in testosterone contributed to developments such as technological innovation and making art , as well as a more cooperative temperament. Yes, testosterone dropped and people got nicer. You don’t remember because it happened about 50,000 years ago, the same time human skulls changed in shape– heavy brows were out; rounder heads were all the rage, or what was left of the 150,000 years of rage that preceded the testosterone dip. A Duke University news release reports that the theory is based on measurements of more than 1,400 ancient and modern skulls,

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