Science suggests that marijuana has anti-carcinogenic elements n it's cure to more than 20 life threatening diseases like Alzheimer n depression etc. Why is it still illegal? What actually makes it illegal? Does it cause more harm than a cigarette or alcohol? Please substantiate. Thank you.

Dr. Amit NagarkarPsychiatrist13yrs exp

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There are no proven benefits of marijuana over cancer. It use as a treatment for depression or alzheimer's is questionable just for the reason of risk benefit ratios. It's illegal to use marijuana sine it is a psychoactive substance prone for dependence and association with other drugs and antisocial activities. Also marijuana or cannabis may precipitate psychosis with long term use. Hence it's use for any indication is simply a leap in the dark, unless we have evidence based studies for active ingredients of the substance. 

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