[meyer]

I've also read that the more tightly constructed, well-insulated modern houses have also contributed to the increasing prevalence of asthma. Any thoughts?

I think that's just one of many theories. I've also heard that with today's working parents/latchkey kids, there's nobody really cleaning the home any more and that is contributing to the apparent increase in asthma cases as well. My asthma only occurs when I'm around cats for extended periods of time - and even then, if the ventilation and filtration is adequate, it doesn't bother me.

[independentmind]

I've also heard that with today's working parents/latchkey kids, there's nobody really cleaning the home any more and that is contributing to the apparent increase in asthma cases as well.

Well, that's pretty much the opposite of what I've heard, actually. The generally antiseptic environment in which many of us live today doesn't give us the ability to build up tolerance to irritants.

Asthma and allergies are constant plagues to many people in my extended family. Just as an aside, I have a nephew who lives in a spotlessly clean home and he has suffered from asthma and allergies since he was a tot.

[lonestar]

... the increasing prevalence of asthma.

My relative realized that her dishwaher was causing her to have asthma attacks. She switched soap and it stopped.

I can't walk down the aisle with detergents and cleaning products at the store without having a sneezing fit.

I think I'll sue!