Discovery Health Guide to Asthma

Possible asthma triggers include:

* air pollution
* certain foods or medicines
* changes in weather
* cockroaches
* cold or flu
* crying, laughing or yelling
* exercise
* mold

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* Approximately 20 million Americans have asthma.

* More than 70% of people with asthma also suffer from allergies.

* The prevalence of asthma increased 75% from 1980-1994.

* Asthma accounts for one-quarter of all emergency room visits in the U.S. each year.

* There are approximately 5,000 deaths from asthma annually.

* Asthma prevalence is 39% higher in African Americans than in whites.

Source: American Academy of Allergy Asthma and Immunology