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Depends on what you mean by "effect". Some strains are richer in CBD, others- in THC (people think marijuana is stronger because it is richer in THC and that equates to a higher "high" if you'd like).

You seem very knowledgeable about this thing. I'm in The Philippines. I think our county has long way to go before Marijuana becomes widely acceptable. But it is okay, we have bigger things needs more attention to correct.