Some time back there was a lot of discussion about Alex Vero and his Road to Beijing project. Could a 16 stone smoker make the GB Olympic team?
Several forums had long discussions about it,
http://www.runnersworld.co.uk/forum/...101396&V=6&SP=
http://www.letsrun.com/forum/flat_re...1860522&page=0
The culmination of the project is available on Channel4,
http://www.channel4.com/programmes/r...the-limits/4od
If you've got 50 minutes to spare it's worth a watch.