Do you have an example in mind for when smoking would be healthy for you?
But also when it comes more in a form of a ritual for spiritual (or psychological) progress. Many native american traditions used it that way, or as a way to bond in a group and solve complicated matters like peace and war.
When consumed in small quantities, I believe the body and lungs does not sustain harm - short stress yes, but not real harm. (just training?) Don't know about any studies which support that, but that is my personal experience.
So while one cigarette every six months might not be catastrophic the difference between a pack a day and a pack a week might not be as big as you think.
Interesting, do you have any studies at hand? (but I would also never argue, that one pack a week is beneficial)
What I could observe with me, that smoking daily clearly (one cigarette) effected my lungs. So the number needs to be much lower ...
This is a newer study which shows same cardio vascular risk, somewhat reduced cancer risk and overall similar overall mortality risk between light smokers (1-4 cigs a day) and heavy smokers.
Light smoking is something which is very hard to study since it’s often a transient behavior and people tend not to classify them selves as smokers if the smoke substantially less than one pack a day.
That said I don’t really see any possitive effects of light or intermittent smoking it might not be as bad as smoking 4 packs a day but it’s definitely outweighs any possible benefits of smoking such as stress relief.
Weed or wanking in the bathroom seems to be a better alternative to dealing with stress....