I am not sure if you still want responses to this. But yes there is a huge stigma in regard to lung cancer, people assume that if you have lung cancer you must have smoked. But 20% of people who develop lung cancer have never smoked. In my experience I have never smoked, never worked in a dusty industry, always had a good diet, my parents never smoked, my husband of 27 years never smoked. I did live in Thailand for some time and in Bangkok for 14 months that was a high pollution environment due to the traffic and dust from the street. Our noses were always full of a black substance. But that was back in the 80's and we are now in 2020. So I have no idea if exposure that long ago could have caused the cancer. I do believe that anyone who has developed cancer should be treated. Many people were not aware when they first started smoking that it was addictive or that it caused cancer and the cigarette company died this for a very long time. Dr's used to smoke they used to recommend smoking to control nervousness, the army gave cigarettes to the soldiers. So we cannot deny treatment to those that have lung cancer. WE cannot be sure that smoking is the cause of the cancer as in my case what has been the cause when I never smoked. Even if you do smoke all your life you may not ever die from lung cancer. I have known people that smoked from the age of 14 until there were 80 and they did not die from lung cancer.
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