Some of this is kind of silly, imo. Raptor: "The problem was that the ladies were all closet smokers cauze it was socialy unacceptable and they smoked more!"? I'm sure they were able to get an accurate numbers account for the 'ladies'?

My mother had a cousin who was a closet smoker- and she smoked a WHOLE lot less than most smokers- if you can't smoke in front of others, how often are you able to light up?

And you don't need 'scientific' studies to ascertain whether smoking causes/contributes to coughing/chest congestion or just plain bad smells.

If you want to smoke, go ahead; no one's stopping you. But convincing others that you are in control of it ? Nah. It don' flah.