You might think that jogging is harmless, but you will soon be on to the harder stuff: proper running, the odd 10k here and there, cross country. Then once you progress on to half marathons it won't be long before you try the really hard stuff like a marathon.
It's a slippery slope. I know I've been there.
Hello, I'm Rick and I'm a runnaholic. 
Edited: 23/09/2012 at 09:47