This month's CrossFit Journal references longevity expert Dr. Roy Wolford who recently died. He had an interesting way of living life that is 'CrossFit' like called the "Signpost Theory of Life"
Here's more info. http://www.mi-reporter.com/sited/story/html/164788
Wolford practiced what he called the ``Signpost Theory of Life.'' Stated simply, he believed that years of doing the same thing, in much the same way, become a blur. Those years dissolve into mental ``thin air.'' The same job, the same Saturday morning golf game, the same Wednesday evening bridge get-together, the same Mother's Day family celebrations, all merge together and become ultimately quite forgettable -- dare I say ``meaningless?''
``Signposters'' recognize that they won't live forever and want to maximize their existence, not through length, but through intensity. In other words, one should measure life by amplitude, not longevity. Wolford's life was testament to his vigorous rebellion against letting days or months or years slip by without doing something entirely different to break up the routine. In Wolford's spirit, routine is Satan.