Define "lift heavy" (beginner, not a dumb question!)
OK, so I've been lifting weights to build muscle for about a month, and the results are *just* starting to be noticeable to others. I've seen lots of lifters on here recommend lifting heavy; which I understand, but I'm after some specifics. My program has various exercises at 3-5 sets of 12-15 reps. Now, if I want to lift…
