[madness410]

6 reps is enough to activate your muscle fibers. depends what you are going for really...some people do insane weight for just 3 reps to build up their strength.

and of course...i heard the #1 myth in working out that this kid SWEARS to. he goes: (and i quote) "i do 300 reps of curls with a 5 pound dumbell, im sculpting my biceps". i got a good laugh out of it..