if you're predisposed mentally or genetically, cannabis can very well alter the symptoms. the answer is no. New study casts doubt on
casual use, definitely no. heavy use, maybe, if you're genetically predisposed to it. it's like your chances are one in a million if you don't smoke, and two in a million if you do. Not really much difference but the haters want to make a big deal of it so that's why it's in the news lately.