National Institute on Drug Abuse (NIDA) Marijuana

Marijuana is the most commonly used illicit drug (22.2 million people have used it in the past month) according to the 2015 National Survey on Drug Use and Health. Its use is more prevalent among men than women—a gender gap that widened in the years 2007 to 2014. Marijuana use is widespread among adolescents and young adults. ................
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