Youve got to do a lot of things right to get the massive muscle size density strength & hardness you see among the nationallyranked & prolevel bodybuilders. Youve got to keep you protein intake high train aggressively manage your carb intake get sufficient rest etc. But lets face ityou can do everything right & your gains will be still be limited unless you also do something to increase your testosterone & growth hormone levels. These two hormones are the most anabolic substa