A new study has come out studying the medicinal benefits of pot:
Twenty-three states and Washington, D.C. have laws permitting medical marijuana use. 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. An editorial in the journal says approval in many states has been based on poor quality studies, patients’ testimonials or other nonscientific evidence.