I'm pretty sure my marathon was the man reason behind my current back problems... It's not a natural thing to do. That's what makes it such an achievement. Kudos to anyone who has run one.
My wife took up running a couple of months ago, though she has always been fit and healthy, and has been inspired to run the marathon next year. I did one in 2000 but my back won't let me these days, otherwise I would be up for it.
Who else is inspired to run, for yourself or a charity close to...