Testosterone is all the rage. But what’s the science behind it? : Short Wave - NPR

Testosterone is all the rage. But what’s the science behind it? : Short Wave  NPRWhy are testosterone levels falling?  WHYYShould you be taking testosterone?  Scientific AmericanThe military’s testosterone plan, a Fox News host’s 'joke,' and the real issue at hand  USA TodayWhere Has All the Testosterone Gone?  The Atlantic