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Health effects of marijuana use in Adolescents

In addition to all the risks associated with marijuana misuse by adults, marijuana use among adolescents poses unique risks. Unfortunately, the vast majority of youth that use marijuana also have a lower perceived risk of harm associated with marijuana use.  This is particularly troubling, as youth are more susceptible to the following:
  • Memory loss and decrease in cognitive performance
  • Use increases risk of accidents, poor decision-making
  • Long-term lingering effects of use on brain include heightened risk of dependence and cognitive deficits
As a result, public health professionals have focused on prevention efforts to change community standards, codes, or attitudes, thereby decreasing the incidence and prevalence of marijuana use in public areas. 

Marijuana use among youth

Picture
  • As can be seen in the graph, the prevalence of marijuana use among youth has begun to increase while cigarette use among youth has been decreasing in the past ten years. 
  • This is concerning, especially since marijuana is highly accessible to older teenagers
  • In 2012 66.9% of 8th graders, 50.9% of 10th graders and 44.1% of 12th graders said there was a great risk in smoking marijuana regularly. These numbers have been steadily declining over the last 6 years.

  • The Teen Brain on Marijuana - a Presentation by Siom kim Karris, PhD. 

Marijuana use can have significant, long-term effects on the brain development of young people. A copy of a presentation given by Siom Kim Harris, PhD of the Center for Adolescent Substance Abuse Research at Boston Children’s Hospital, can be viewed below or downloaded at right.  
teenbrainandmj2012.pdf
File Size: 5613 kb
File Type: pdf
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