Arena

http://www.abctales.com/story/robert-levin/arena

This is a well written fictional tale of wit against brawn and with, I think, probably a core of truth in it.
The end is perhaps too self congratulatory and understandably misses the importance of good luck and the fact that he could still dart and run.

Quick wits and undeniably the saviour of the day but probably a lot less to do with why he felt so much better for a few days after than the actually escape itself.

Well man = healthy mind and healthy body! Try to find something to run to, or from, several times a week and do it until you're breathless.