Everybody who knows a little about todays pro bodybuilding scene knows what amount of illegal drugs are consumed to achieve their freakin' physiques.
Drugs change everything.
From the muscle building rate, metabolism, local energy levels in the muscle, recovery time, even to your mood. Natural bodybuilding is different Natural bodybuilding means natural growth stimuli, food and recovery. Things progress slowly, and if you overload your body, you will always feel its response. Most of the natural guys out there I know train with significantly lower volume, because they know how their body reacts to training and what it needs to grow naturally. My own routine was always in a very low volume direction.