Here’s What Researchers Know So Far About How Marijuana Legalization Affects Public Health

Here’s What Researchers Know So Far About How Marijuana Legalization Affects Public Health

Opponents of medical and recreational marijuana laws often raise concerns about their effect on public health, claiming that such policies will result in a rise of cannabis use disorder and the use of other potentially harmful substances. A new review, however, found that while marijuana use does increase among adults—but not teens—after legalization, that doesn’t necessarily mean more people are engaging in risky behavior. “Research suggests [medical cannabis laws] increase adult but not adolescent cannabis use, and provisions of the laws associated with less regulated supply may increase adult cannabis use disorders,” the paper states. “These laws may reduce some opioid-related harms, while their impacts on alcohol and tobacco use remain uncertain.” “Research on [recreational cannabis laws] is just emerging, but findings suggest little impact on the prevalence of adolescent cannabis use, potential increases in college student use, and unknown effects on other substance use.” To understand the relationship between marijuana laws and public health outcomes, researchers in California analyzed studies published between January 2005 and February 2019 that focused on marijuana policy and consumption, as well as alcohol, opioid and tobacco use. They found 42 articles that fit their criteria. “Understanding how cannabis policies impact cannabis use is key to making subsequent causal claims about their effects on the use of other substances, but it is also an important question in and of itself,” the review’s authors write. “If liberalization does not impact cannabis use, but instead shifts some or all existing use (or potential use) from the illegal to legal market, then arguably such policies are welfare enhancing from a governmental perspective (e.g., increased tax revenues, reduced law enforcement expenditures) and from a consumer perspective (e.g., a safer and more consistent product).” Here’s a brief look at some of their findings, which were published this month in the…

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Source : MJ moment
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