Young men under 40 are experiencing erectile dysfunction and reaching for Cialis and testosterone replacement therapy, assuming something is physically wrong. The more likely culprit is heavy pornography use rewiring their brains. Steven Wolt traces his own dysfunction — difficulty maintaining erections, inability to orgasm without replaying a porn scene, and premature ejaculation linked to shame and secrecy — and argues that the first step is naming the real cause rather than medicating around it.