Would 1 cigarette be harmful?

A cigarette once in a while would be a beautiful thing. BUT..... nicotine is perhaps the MOST addictive substance there is - and pretty quick that one cigarette would be 20 or 30 a day.

Life-long cigarette addiction starts in precisely this way. And quitting is quite an epic struggle.

Not terribly harmful, but worse than no cigarettes at all.

don't start if you haven't

no absolutely not but don't to it so much you could get addicted