Does mildly prolonged use of marijuana have permanent effects on the brain?
I doubt very seriously that you will have any long term effects. Back in the day (around 1950) there was a movie called “refer madness”. It was a drug awarness message that went over the top and became a cult movie that was really quite hillarious. But being 55 I have noticed that my friends who have been smoking weed for some 40 years have all the signs of some sort of loss as far as the thought process goes. The same can be said for the ones who drink everyday. Best I can tell you is if you must indulge use your head and moderation.