Thanks for answering! You've given me a lot to think about. Right now I can't afford testing. I can barely afford to make it month to month. About the urban setting: it was in a developing country. The city I lived in was in a small area as far as land mass is concerned, but had about 1 million peop...

Hi all. Im Ida, 44 years old, female, high school teacher. Never been a smoker in my life, but I have COPD. I believe its from living in cities where the air pollution was horrid, and there were no emission controls etc on the vehicles. Anyway, I've been reading here for a while, and actually this s...