Interview with Roy Barzilai Author of Testosterone Hypothesis - a podcast by Jay Campbell

Jay Campbell and Alexander Juan Antonio Cortes discuss how hormones regulate the life cycles of civilization with Author Roy Barzilai.

Roy's book is an absolutely fascinating expose on how much hormones have played a role in the evolution of humanity.

Please purchase Roy's book to learn more:
http://testosteronecivilization.com/

If you are interested in optimizing your Hormones to age gracefully within the context of health and longevity get my book:
http://bit.ly/TRTOptimal

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