Find more from Logan Christopher at www.LegendaryStrength.com Includes a link to download a Bonus Video showing you how to use Berzerker State in action, as performed live with real weights. Among weightlifters you see psyching up fairly commonly. Among people that do bodyweight training you don't see it nearly as much. Why is that? Do you know? If you go back in the sports psychology research from about 30 or so years ago one of the things they often...