Heart attack 2001, ventricular tachycardia 2002 (where I got my defibrillator) started bicycle riding in 2006 and lost 70 plus pounds. Rode without effect until May of 2008 when I had a little defibrillator incident while I was riding (only five or six shocks!). Took a couple of months REAL easy, then have been back at it again (100-130 mile weeks) and am now back to relatively normal. Of course, I could drop dead right now, but here I am and here I ride.

BTW, I'd have been dead in 2006 if I hadn't started riding.