Porn's Effect on Brain Grey Matter The available research suggests that frequent pornography consumption may lead to a reduction in grey matter in certain areas of the brain. Specifically:

The prefrontal cortex, responsible for decision-making and impulse control, has been shown to exhibit decreased grey matter volume in individuals with pornography addiction (Kühn & Gallinat, 2014). The right caudate of the striatum, an area involved in reward processing and motivation, has been found to have smaller grey matter volume in men who watch large amounts of pornography (Kühn & Gallinat, 2014; Watching Porn Linked To Less Gray Matter In The Brain, 2014; Porn viewing linked to less grey matter in brain, 2021). A study monitoring brain changes after quitting porn use reported improved brain function and increased grey matter volume after 3 months of abstinence (Effects of Quitting Porn: Improved Brain Function & Gray Matter Changes — Eightify, 2023).