What Is Asthma?

Asthma is a lung condition that may cause coughing, wheezing, or trouble breathing. Anyone with allergies or a history of smoking is at risk, and you're also more likely to get asthma if you're obese.

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More on Asthma

What Is Allergic Asthma, the Most Common Type of Asthma?

Pollen, mold, and other common allergens could be triggering your wheezing and shortness of breath. Here's what to do about it.
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Yes, Thunderstorms Can Cause Asthma Attacks—Here’s How

An allergist explains the science behind the breathing problems that sent thousands of people to the hospital in Melbourne, Australia, last week.