There is nothing special about drugs that means they have side effects while other things don't. Take epo for instance. What makes epo risky is not epo, but th

There is nothing special about drugs that means they have side effects while other things don't. Take epo for instance. What makes epo risky is not epo, but the increase in red blood cells. Now other things that increase red blood cells like intense training at high altitudes have the same risk. But we always draw the line with drugs. It's definitely cultural. Imagine a ruling body finds out about a performance enhancing drug and a performance enhancing technique. They have the same risks. Which gets banned?