Catalystفصل 15 جایگزینی تصویرشماره قسمت10Testosterone - It's Not All About SexOverviewDr Graham Phillips delves into the latest research into testosterone, from the womb to old age, it not only moulds the male body and mind but is a hormone of good health during the life of a man. And it is true of women too.Air dateSeptember 18, 2014Runtime (min)30