The genetics of cannabis lifetime use

Cannabis, which is increasingly legally available, both for therapeutic and recreational use, is now one of the most commonly used drugs worldwide. Of people who have ever used cannabis, studies vary, but they estimate that about 10-25 percent of people who use cannabis go on to develop cannabis use disorder. Uri Bright is a postdoctoral associate at the Yale School of Medicine and is one of the authors of a recent study in the journal Neuropsychopharmacology on the genetics of cannabis lifetime use — which is anyone who has ever used cannabis even once. That’s a distinct population from people who have cannabis use disorder, as his colleagues had looked into in the previous study.