I'm 13 and I'd like to be ripped, but I hear that building muscle at such a young age can stunt your growth. Is this true? Thanks in advance.

I don't believe that working out at a young are will spurt your growth, i started when i was 14 an my brother did nothing and we are around the same height, but i am in better shape than he is. concentrate on doing squats, press ups and pull ups, use your body weight instead of weights to build endurance and strenght, i disagree with the comment left above mine that it can harm you, in my opinion will be of good benefit for you, just don't go lifting anything to heavy, as i said, use your own body weight