The participants smoked pot thrice a day on average; Let's run the study on people who use Martinis thrice daily... breakfast, lunch and dinner.
What a stupid study... how about testing normal people who only use pot like they would use a cocktail.
Is your point that there are no heavy pot users who smoke three times a day? It seems very likely. I know some folks probably only smoke once a week, too. If the point is that the study is not correct because it had heavier than normal pot smokers, then doesn't it show, that just like alcohol abuse, the more you use in a day over the longer period, the worse it is for your brain?
I never understand why these types of studies are upsetting.