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that was my first thought as well, but it is interesting that the addiction rate seems to double for those who started as a teenager. I guess it makes sense that changing chemical balances in the brain when it is growing that rapidly could easily cause dependencies.

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There are studies that teens with a predisposition to schizophrenia and similar mental issues can actually be exacerbated by marijuana.

I haven't heard evidence of it doing the same for adults, but I'd have to check.

There are a number of reasons why children/teens shouldn't use it, and should be as tolerated a children smoking/drinking/opioid-ing

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