I think Peck (like myself to be honest), found some humor only because it seemed to be a real case of hypochondria....I mean- who goes on the internet and does their own research for something as serious as cancer, to the point where they ABSOLUTELY convince themselves they have it? As a reference, my brother is a Professor of Oncology at Stanford, my parents are both doctors, and I wouldn't even ask THEM! I go to my own personal doctor...as a kid, I wouldn't even let my dad give me stitches....that's my dad. Trusting the internet, or frankly a bunch of pipe smoking hooligans for advice? I found it humorous, sorry.
I don't know who said it, but I'd rather die from 50 years of pleasure than a broken heart, and giving up my pipe would break my heart. If it worries you, even in the slightest, I suggest you quit, and give that advice to anyone.