For some, it can be dangerous. In the past few years, reports have swelled of people, especially teens, experiencing short- and long-term “marijuana-induced psychosis,” with consequences including hospitalizations for chronic vomiting and auditory hallucinations of talking birds. Multiple studies have drawn a link between heavy use of high-potency marijuana, in particular, and the development of psychological disorders, including schizophrenia, although a causal connection hasn’t been proved. “It’s entirely possible that this new kind of cannabis—very strong, used in these very intensive patterns—could do permanent brain damage to teenagers because that’s when the brain is developing a lot,” Keith Humphreys, a Stanford psychiatry professor and a former drug-policy adviser to the Obama administration, told me. Humphreys stressed that the share of people who have isolated psychotic episodes on weed will be “much larger” than the number of people who end up permanently altered. But even a temporary bout of psychosis is pretty bad. Marijuana Is Too Strong Now – https://www.theatlantic.com/ideas/archive/2024/08/high-potency-marijuana-regulation/679639/