"Most convincing was our finding that never-smokers had a two-fold increase in risk of pancreatic cancer," said Michaud. "
WOnder why that is ... ?
Don't know. I read that a couple times myself.(?)
A quick search shows some think that smoking may not only mask symptoms of oral inflammation, but reduce them too; by vasoconstriction, reduction of the growth of periodontal bacteria because of reduced inflammation, or possibly by some as yet unknown inflammatory suppressing component of the smoke.