Originally Posted by Dudelsack

Um, I am a doctor. Believe it or not, most of those types of doctors have literally died off. On the staff of my hospital are at least two Ironman finishers, a cat 2 roadie, a couple of ultra marathoners, and an assortment of recreational cyclists. I neither smoke nor tolerate the presence of those who do. I routinely steer people who need to start exercising to my LBS. My LBS loves me. I'm surprised they didn't send me a Christmas card this year.

Having said that, we really can't give specific advice on the Net.