Even though I think you could just be full of shit, I'll play your game just for the sake of self explanation.

I juice because it makes me Happier with the way I look. It makes me a happier person. Since you're a med student, here's a lesson from a business student. Consumers - just like people- face TRADEOFFS. I am willing to potentially endanger my health in an educated, non reckless way - steroids. I feel that cycling intelligently comes with minimal health risks, most of which are short term. I've researched AS for over a year now and am confident in my beliefs. To me, happiness is worth the risk.