Don't ask me how I found this out. Anyway, evidently microwave popcorn is not good for your lungs.
http://news.yahoo.com/microwave-popcorn-cause-lung-disease-131409840.html
There's more.
https://www.google.com/search?q=dia...&sugexp=chrome,mod=6&sourceid=chrome&ie=UTF-8
Fact check inconclusive.
http://www.snopes.com/medical/toxins/popcorn.asp
http://news.yahoo.com/microwave-popcorn-cause-lung-disease-131409840.html
There's more.
https://www.google.com/search?q=dia...&sugexp=chrome,mod=6&sourceid=chrome&ie=UTF-8
Fact check inconclusive.
http://www.snopes.com/medical/toxins/popcorn.asp