As a doctor do you feel that tobacco is the main cause of lung cancer, or is it the chemicals big companies pt, or is there not enough research?

Lung Cancer: There is no question that lung cancer is more common in smokers. Smoking is considered the #1 risk factor. However, as many as 1 out of 3 lung cancer victims are non-smokers. Exposure to asbestos, radium or other toxic chemicals can contribute to lung cancer. Lung cancer is the most common cause of cancer deaths among men and women in the US. Thanks for trusting HealthTap!

YES,: But not because of the nicotine that gets you hooked, but from all the other components such as the tar and the heat of the smoke is also a factor. Do non- smokers get lung cancer, yes they do but not in the high numbers we see from first hand and second hand smoke from tobacco. The only chemical that has been a cause for concern is the addition of extra nitcotine in the tobacco, but can't prove

Not sure: No one can really attribute how much harm comes from the tobacco leaf vs the paper vs the chemicals added but all three are burned and inhaled and lead to disease