Dude Sum thats definately not true, i mean think about it how would THC be absorbed in your nose. Its all absorbed in your lungs only. And by the way french inhaling is actually when you take a really big hit off a joint or blunt usually and then get the smoke really concentrated in your mouth to blow it out just a little,(can only be done inside or with no wind) and then you suck it back in. If you do it right it looks really cool.