Out and about yesterday, I was surprised to see a couple of men in kippot standing outside a kosher restaurant having a cigarette. Smoking Jews are an increasingly uncommon sight these days and rabbis have debated whether tobacco should be proscribed.
Some have indeed banned smoking on the grounds that Judaism forbids practices that are known to endanger health. But I am more sympathetic to those who feel there are quite enough prohibitions already and some vices should be left to individual choice.