i go to a big state university. lets just say my gym is comprised of 3 or 4 serious lifters and then about 1000 jackass frat boys that do a chest/bicep everyday type routine. the thing is, some of these guys do have impressive arms. and we all know how they train, 40 sets for biceps, 60 sets for chest, everyday.
so my question is, how do these guys not overtrain their arms? probably gear, but still. makes me wonder if the whole high-volume will lead to overtraining is overblown.