I was always pretty athletic throughout my life having played basketball and hockey during my middle/high school years. At around age 19 I found myself to be really out of shape so I buckled and started hitting the gym six days a week. It's a high that one can't achieve doing anything else and I been hooked since.

I think Arnold said it best honestly... it's one of the few sports where you don't rely on anyone else. You are your own person and no one else can take credit for your success (or the blame for your failings.)