It's not that I don't get high anymore, I just don't get the same kind of high. I remember last year when I was hanging out with my old friends I used to smoke a blunt and get a yellow glaze over my eyes, and they'd get so bloodshot they'd look like they had a red grid on them. I'd get to the state where I would have a hard time comprehending the Wendy's menu enough to order(because a number 9 was a 10 peice chicken nugget). Now I can smoke a 40 and only feel relaxed. It's weird because I didn't notice the same difference between a year and 2 years ago. Lately, I've been missing the kind of high that I used to get... alot. Seriously, if the $40 eighth(yes, it's expensive) I buy next month doesn't get me blazed, I'm going to stop smoking weed so I can run longer...but I was wondering, why I haven't been getting as high. I know the stuff that I used to get wasn't laced because it never made my mouth numb, and there's no way that the weed was that much better(it's like a completely different high now), so, I figure I must be getting immune to it or semi-immune. I'd like to know the physiological reason why this happens, in full detail if at all possible. For example, which cells are responsible, what process do they perform, what is responsible for the initiation of these processes, et cetera. Basically I want to conceptualise the reason why I've become more tolerant of weed.