Brain Fog
A huge drawback of porn is the brain fog you feel every day, inhibited to think and act properly.
There are countless examples from YBOP, let's go over some of them
Admittedly most of that gif is about emotional health, but here's a summary of cognitive health outcomes
Inability to delay gratification
Every day you continue to use porn, you continue to lose the ability to delay gratification, making you more impulsive and prone to making dumb decisions
Memory problems
Your working memory suffers, meaning you forget stuff in the short term more often, the more you continue to use porn