Art De Vany reprints a letter from Mark Sisson on Steroids in Sports, explaining why the notion of a fair playing field is a farce:
Hard training raises EPO and hematocrit, but drug companies also make artificial EPO which does the same thing without training (intended medical use is for recovery from chemotherapy which destroys RBCs). Artificial EPO is banned. Now here’s the irony: research confirms that if you train at sea level and sleep at 14,000 feet, your body makes red blood cells at an impressive rate and amount. Several companies have developed expensive “altitude chambers” for home use where you can now train at sea level and then retire to your room for the night, simulating an altitude of 14,000 feet or higher. The end result is that you have, within the letter of the law, manipulated your own EPO to artificially raise hematocrit, yet using artificial EPO to do the same thing is punishable by a 2-year suspension. Talk to an endurance athlete from a developing nation with $2 to his name about THAT level playing field.