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According to Business Insider, only 6% of studies on marijuana focused on the drug's benefits. But there are so many.
A growing body of research links marijuana use among some young adults to mental health issues such as schizophrenia, bipolar disorder and depression.
Laboratory experiments have shown that cannabinoids found in marijuana may have analgesic and anti-inflammatory effects. [23] In 2014, the American Academy of Neurology reviewed all available findings levering the use of marijuana to treat brain diseases. The result was that the scientific evidence is weak that cannabis in any form serves as ...
Marijuana is already commonly used to alleviate some of the painful symptoms of cancer and chemotherapy, but there's some research suggesting marijuana can actually delay or reduce tumors.
In the U.S., the National Institute on Drug Abuse defines medical cannabis as "using the whole, unprocessed marijuana plant or its basic extracts to treat symptoms of illness and other conditions". [14] A cannabis plant includes more than 400 different chemicals, of which about 70 are cannabinoids. [15]
A 2013 literature review said that exposure to cannabis was "associated with diseases of the liver (particularly with co-existing hepatitis C), lungs, heart, and vasculature". The authors cautioned that "evidence is needed, and further research should be considered, to prove causal associations of marijuana with many physical health conditions ...
Canadian researchers examined the health records of more than 12 million people living in Ontario between 2008 and 2019 who had no record of an anxiety disorder, or of receiving treatment for one.
The authors cautioned that "evidence is needed, and further research should be considered, to prove causal associations of cannabis with many physical health conditions". [107] Cannabis use disorder is defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders as a condition requiring treatment. [107]