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Editorial Opinion David Goldman, MD Cannabis is widely used, psychoactive, and addictive. Given The Vulnerable Brain the choice, people in several US states and the District of Co- Genotype and environment can be better controlled in ani- lumbia have voted to legalize it. In the nation’s capital, it is now mal models, leading to more consistency of effects, espe- legal to possess as many as 3 Cannabis sativa plants. Mean- cially on physiology. Humans are messier. Because of diver- while, it remains illegal to sity in genotype and environment, one person’s sugar may be have cannabis on federal another’s poison. Also in this issue, French and colleagues took Related articles pages 994 land, which is problematic in a very different approach to investigate the role of genotype and 1002 a mosaic of federal and local in the effects of cannabis on brain structure. In 3 longitudi- jurisdictions. Further, a fed- nally studied populations comprising more than 1500 adoles- eral worker stands to be fired if discovered to be using canna- cents, they found that a polygenic risk score for schizophre- bis. In the cannabis debate, does the science of consequences nia, a disease that may be triggered by cannabis,
JAMA Psychiatry – American Medical Association
Published: Oct 1, 2015
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