Studies find medical marijuana unproven to help many illnesses
Evidence was weak that marijuana helps anxiety and sleep disorders
The Guardian (UK)
Tuesday, June 23, 2015
Tuesday, June 23, 2015
Medical marijuana has not been proven to work for many illnesses that state laws have approved it for, according to the first comprehensive analysis of research on its potential benefits. The strongest evidence is for chronic pain and for muscle stiffness in multiple sclerosis, according to the review, which evaluated 79 studies involving more than 6,000 patients. Evidence was weak for many other conditions, including anxiety, sleep disorders, and Tourette’s syndrome and the authors recommend more research.
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