WARNING: SENSITIVE IMAGES
1. The more porn the participant reported watching, the smaller the volume of the striatum.
2. The portion of the striatum that is activated when people see sexual stimuli showed less activation the more porn the participant reported watching.
3. The more porn the participant reported watching, the worse the connection between their striatum and their prefrontal cortex (the outer layer of the brain associated with behavior and decision-making).
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I think the more pressing question is, is porn more damaging to the brain than actual sex? Today, you can just swipe and find a willing partner if they happen to be within you league. If they are basically the same (there is such a thing as sex addiction), I'd be picking porn over casual sex with strangers. Less risk of getting STDs.
I heard it prevents and relieves prostatitis.