Actually I was Googling the topic, since in this discussion someone in the naturalliving community mentioned that "coffee is a bronchodilator" so that it helps with asthma - in a discussion where we were all debating the relative value of cravings.
Hmm; so - that was new information to me which I find really interesting.
more scientific source of this idea:
1983 Italian National Health Survey, based on 72,284 individuals aged over 15 years randomly selected...the results of this survey provide epidemiologic confirmation of previous clinical observations that caffeine intake has a bronchodilator effect in asthma, and indirectly suggest that long-term moderate coffee consumption may not only reduce symptoms, but also prevent the clinical manifestation of bronchial asthma. -from A Pub Med article... and although the base of the study was quite large, it was still determined to be an indicator, not decisive. Hm; still interesting though.
So wow, that's flexible, eh? Even if there isn't really coffee in that cup. sheesh!