I jus realised if i don hav a joint for like 4 days or so i start to caugh up nasty shit is thr any scientific evidence tht shows it beaks up all tht shit in ur lungs lol
breaks up what shit in your lungs? if u smoke cigs that might be the reason for coughing up nasty shit, or maybe it's the ganj...
I don't really understand what your asking, but when you smoke pot your getting an assload of shit in your lungs. It isn't helping any at all...