Marijuana Use Among US Adults Has Doubled Since 2001, Study Finds

Marijuana use and marijuana use disorders both increased from 2001, according to a new study.

The legalization of pot use in many states could have led to more people viewing marijuana as harmless. (Photo : Google Commons)

A new study has found that marijuana use among adults in the U.S. has doubled from 2001 to 2013, and marijuana use disorders have also increased, according to CBS News.

Researchers from the National Institute on Alcohol Abuse and Alcoholism analyzed the data collected from 43,093 study participants between 2001 and 2002 and 36,309 participants between 2012 to 2013. They found that marijuana use rose from four percent to 10 percent, and marijuana use disorder or abuse increased from 1.5 percent to 3 percent from 2001 to 2013.

The researchers said that the increase in marijuana use was most observed in women, black or Hispanic individuals, people from ages 45...

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