I used to hate running. But I tried it this year and have become convinced that running is the gateway drug of the fitness world. You can walk forever without feeling the need to do anything more. I find it exceptionally difficult to make a concentrated effort of running and not have visions of marathons, triathlons, or being in South Africa playing for a World Cup team. Back in January, I came up with this crazy idea to set out to run a 5K. I say it's a crazy idea simply because I was somewhere around 100 pounds overweight. Simply the thought of running anywhere was absolutely unreal. But I have a handful of friends who run marathons and I