[Tycoon]

You do not have to be a scientist to do a study of life styles and to use that data to speculate a link between a life style and a medical illness. As I have pointed out before with my anology as an example. If 87 % of the people who have cancer also watch TV for more then 3 hours of the day then I have my stats to suggest a possible link between cancer and TV watching.

TVs have not been proven scientifically to cause cancer. Cigarettes have carcinogens. Carcinogens cause cellular mutations. Cellular mutations otherwise known as cancer.

Are you saying that smog cannot cause lung problems that might be deadly over the long run? But your answer does help to prove my fact that they selected the smoker to demonize so that envirnomentalists will think that all cancers and other major illnesses are caused by smokers, and so that they will be distracted from protesting the toxic stuff produced by industry and in particular the oil / gasoline industry.

And as for the smokers that aren't exposed to smog for long periods of time and still get lung cancer??

Of course, I agree that filtering is not the only purpose of the lungs.

Filtering is not a purpose of the lungs at all! Trust me on this one. I am studying the respiratory in system in Biology right now...

So you got all the facts together?.. wrong - we have 20 cigs in an average pack of cigarettes. Nice to hear your facts are based on guesswork.

So.... there's even more tar than she was guessing?

You totally missed my point, the lungs do not filter what goes into the lungs, they filter out stuff from getting into the blood stream. The lungs have tiny brush like things that push things up from out of the lungs so it can be exhaled.

Those "tiny brush like things" are called cilia, and they are not in the lungs. They are in the air passages between the nostrils and the lungs. And you know what's funny? Smoking paralyzes the cilia so they don't keep stuff out of the lungs anymore. That's why smokers cough more.

You are persistent in your ignorance and I am done arguing this. Everything you say is about trying to poke holes in our statistics. You completely ignore all of the scientific proof and make up stuff about the function of the lungs. Nobody is going to respond to your ignorance anymore.