Asthma episodes are caused by the airways’ sensitivity to various triggers in the
environment. Each person reacts differently to these environmental factors that may
trigger asthma, including:
respiratory infections, colds
cigarette smoke
allergic reactions to pollens, mold, animal dander, feathers,
dust mites, scents, food and cockroaches
exercise
exposure to cold air or sudden temperature change
excitement/stress
Asthma can develop quickly and it can range from being a mild discomfort to a
life-threatening attack if breathing stops completely. Asthma problems are often
separated by symptom-free periods.
The American Lung Association has been committed to improving the lives of people
with asthma for decades. As a leader in the asthma education, public policy and research,
we take a comprehensive approach to improving asthma care by working with families,
communities, and a diversity of health care professionals nationwide.
Return
