Teen use of marijuana declined dramatically between 2002 and 2013, shedding more doubt on the concern that legalization will increase the number of users.
A new study published by researchers at Washington University School of Medicine found that over 12 years, marijuana-related disorders among teens aged 12 to 17 years old declined by 24 percent. The data was collected from more than 216,000 adolescents across all 50 states.
The researchers also asked the teens about their use of marijuana in the last 12 months. Between 2002 and 2013, the usage rates fell by 10 percent. Over the same period of time, 10 states legalized medical marijuana, 13 relaxed laws around pot use, and both Colorado and Washington made the drug completely legal, according to The Washington Post.
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