I am still in to find the reason for increased RBC due to compounds! I still believe the increased RBC is due to increased musclemass thereby the need for oxygen or even ATP through red blood cells... Since musclegrowth and those doing roid cycles are into bodybuilding, it would seem fitting that the higher musclemass the more RBC.
People that smoke cigarets ruin their lungs, and the oxygen transportation becomes a problem to muscle tissue and alike. Body can do 2-3things to react this;
1. Increase pulse thereby pumping blood faster and increasing oxygen transportation
But an increased pulse is often equal to stress and would by no Means be healthy for the body to run onn for longer periods.
2. Increase RBC to compensate for the lact of oxygen from lungs.
Smokers
3. Bodybuilderes like smokers, instead of an increased pulse the body raises RBC to transport oxygen.. Would seem to be a less of a stressfull state for the body
^^ Im guessing around, i am still trying to find out why.. Any one have some input