As Legal Use of Marijuana Spreads, Researchers Seek to Better Assess the Risks and Benefits

Wider teen access to the drug is at issue, given concerns about its impacts on the developing brain.

 

With a growing number of states allowing medical use of marijuana and, in several cases, recreational use as well, specialists told a AAAS-organized briefing that it is important to better understand both the benefits and risks of such legislation.

Nora D. Volkow, the director of the National Institute on Drug Abuse (NIDA), said she is concerned about increased access to marijuana by adolescents in states with laws that increase availability of the drug, even if a law may explicitly prohibit use by those under 21.

She noted that the average past month use of marijuana by teenagers in Colorado — one of four states that have legalized marijuana use — was just over 11% in 2013, compared to 7.6% in 2006. Voters in the state approved a ballot initiative in November...

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http://www.aaas.org/news/legal-use-marijuana-spreads-researchers-seek-better-assess-risks-and-benefits