For insight into how things REALLY infect and change the brain, here you go…The science on porn’s effect on the male brain is actually quite clear now. Playboy/Hustler/etc images are the equivalent of beer/wine; fine in moderation. High speed internet porn is the equivalent of heroin or meth; there is no safe amount. It leads directly to erectile dysfunction. This is why more than a third of males UNDER 35 experience erectile dysfunction now, while before 2005 (when high speed internet and porn collided) it was almost nonexistent in this age group. This is not a coincidence. The hunter/gatherer brain was NOT designed for this.