Keep bringing it up but Heart surgery and you can recover fully. 1999 and triple bypass. Getting ready in early 2001 for my big ride and Prostate cancer that put training back a couple of years. 2003 and I did the big ride- and in 2004 and 05 but failed on 06. Attempted the ride 11 times now (You always attempt this one) and failed once in 97 due to lack of preparation and again on 06. Link is to the attempt in 06.
Heart surgery and you can recover. Cancer and you can recover- The only thing that will stop you is yourself.
http://www.bikeforums.net/showthread...ns-Way-failure