Not a single twin study on animals or humans has shown any damage or any changes from even the highest concentrations of cannabis.
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cite these “studies.” Seriously. One of the problems we have is that Americans have been prohibited from conducting studies on weed because of its schedule. Its why we have synthc. Please post links to this important research.
I said there are NO studies showing such a thing.
Yet for every OTC drug, you can immediately show direct damage.