This review provides an overview of the changing US epidemiology of cannabis use and
associated problems. Adults and adolescents increasingly view cannabis as harmless, and …

Background: The past decade has seen unprecedented shifts in the cannabis policy
environment, and the public health impacts of these changes will hinge on how they affect …

Importance Little is known about changes in marijuana use and cannabis use disorder
(CUD) after recreational marijuana legalization (RML). Objectives To examine the …

Cannabis is widely used among adolescents and adults. In the US, marijuana laws have
been changing, and Americans increasingly favor legalizing cannabis for medical and …

Importance Laws and attitudes toward marijuana in the United States are becoming more
permissive but little is known about whether the prevalence rates of marijuana use and …

We did a systematic review of reviews with evidence on the effectiveness of prevention,
early intervention, harm reduction, and treatment of problem use in young people for …

Importance Over the last 25 years, illicit cannabis use and cannabis use disorders have
increased among US adults, and 28 states have passed medical marijuana laws (MML) …

Importance Opioid-related mortality increased by 15.6% from 2014 to 2015 and increased
almost 320% between 2000 and 2015. Recent research finds that the use of all pain …

Recent work finds that medical marijuana laws reduce the daily doses filled for opioid
analgesics among Medicare Part-D and Medicaid enrollees, as well as population-wide …

Abstract In the United States, policies regarding the medical and nonmedical use of
cannabis are changing rapidly. In 2021, a total of 34 US states have legalized cannabis for …