The report, which was commissioned in January 1997 by the White House Office of National Drug Control Policy, looked at the effects of smoked marijuana on all the diseases for which some consensus exists that it might be beneficial.
According to new data from SAMHSA, more young people went to the ER after experiencing the negative effects of synthetic marijuana in 2010 than in previous years, despite the growing awareness that the fake stuff can be more damaging to the brain than the real thing.
Researchers don't yet know how to explain these correlations -- and since the study was not a controlled trial, it's not clear whether marijuana or some other factor in marijuana users' lifestyles actually accounted for the beneficial effects.