Why read these studies, smoke some drugs and you will know that none of them make you smarter. Smarter on weed? I've smoked shit that had me lying in bed and watching my eyelids go up and down, totally unable to talk, and then me and my buddy played pingpong and we were playing like fucking chinese olympic champs and sobering up fast, but as soon as we sat down, we went in to no talking mode. No weed makes you smarter, the best it does is make u better at ping pong lol, anyone telling you weed makes you smarter needs to go play some ping pong because it will sober him up and he will realize what a stupid pot head he was.