A study with Marijuana and Depression

Summary and opinion by Mariama McGee.

A new study was published recently in the JAMA Psychiatry that revealed that smoking marijuana is not associated with any type of mood or anxiety disorder such as depression or bipolar disorder. 

The researchers of this study examined approximately 35,000 U.S. adults. They examined the frequent use of marijuana among the participants in 2001 and 2002, then they went back and checked on the participants’ mental health in 2004 and 2005. Within the study, they did control factors such as socio-demographic characteristics and found that marijuana was not linked with increased risk of developing mood or anxiety disorders. However they did find a link between smoking marijuana and substance-abuse disorders. Just like the classic beer and cigarette combo, they say that it was fairly obvious since if you use any substance, you put yourself at risk of a substance disorder. 

Even though this study is a against the theory that cannabis can cause mental disorders, it doesn’t concentrate on the a previous link between intense marijuana use and schizophrenia. Yet Keith Humphrey, an addiction and mental health specialist at Stanford University says that the fate of that connection is far from positive since schizophrenia is rare and it’s hard to predict rare events.

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