Man SDN cant change ur view point on marijuana use. I've known ppl who smoked pot occasionally, they got in to med schools (not the best or even good ones), but in very very late age... (they drinked as well). However look here, how do u immagine to be a pre med? Smoke weed from time to time, drink, parties, girls and etc... ??? Its never going to happen because when you are a pre med student u got to take bunch of science classes (usually 3-4 classes per quarter), u do reaserch, volunteer and u might have to get a job. With this schedule u will just think about ur 5 hours of sleep, and u will have this kind of life for several years. Then, med school, and it is way harder! So, u really need to decide if medicine is ur thing, we all sacrifice something for our dream, and u will have to sacrifice something too