Watching a bunch of porn has some major side effects — and no, we're not just talking about stained bedsheets. In a new study published in the journal Frontiers in Human Neuroscience, researchers at the Chengdu Medical College in the titular town in China found that people who watch a lot of pornography had lower cognitive performance and showed signs of neurological arousal akin to opioid addiction. With their cohort of 21 heterosexual college students — 16 who said in a survey they only watch porn on occasion, and five who were described as having a "severe" internet porn addiction — […]