No, marijuana is not actually “as addictive as heroin”

The overall take-home message from Hall can be summed up as follows: if you use marijuana, don't overdo it
The Washington Post (US)
Thursday, October 9, 2014

reefer-madnessYou may have read this week that a new "20-year research study" on marijuana use "finally demolishes claims that smoking marijuana is harmless," and has found that it "makes you stupid," that "smoking marijuana over the long-term can develop cancer" [SIC], and that marijuana is "as addictive as heroin." At least, that's what you'd conclude if you'd read most media coverage of the study. But if you'd actually read the study yourself, you'd likely walk away with very different conclusions. (See also: Teenagers who use cannabis every day 60% less likely to finish school)

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