Why is Asthma on the rise today in America?

Answer 1

Air pollution, Allergies, various things. I think a poor diet is a contributory factor inasmuch as children are developing more auto-immunne disorders. Indoor pollution with paint, woodwork and carpets outgassing toxic pollutants whilst children sit at the computer playing games instead of getting fresh air and exercise. Please look for products with low or no VOC's[ volatile organic compounds], and use less toxic household cleaners.

Answer 2

Cars, factories, smoking, and all other things that give off bad smoke. The only way to prevent Asthma is to take out all these bad things, factories, cars, trucks, cigarettes...