My story: Theresa and severe asthma

Theresa is a musician and respiratory therapist. She shares how severe asthma has impacted her life, both the good and the bad.

Asthma doesn't always develop in childhood. Find out about adult asthma symptoms.

Most people with asthma understand asthma triggers. But do you know what causes asthma in the first place?

Learn how strong emotions can affect asthma symptoms—and find ways to breathe easier.

Get the dirt on what causes allergies and asthma.

From pollen to pigweed, learn how to stop pesky fall allergens in their tracks.