Asthma is caused by a combination of factors. People who develop asthma may have a genetic predisposition and react to ...

Asthma is a chronic condition that affects the airways in your lungs. It makes the airways inflamed and swollen, causing symptoms like coughing and wheezing. Exercise may help ease asthma symptoms.

The first is the loss of support of the small airways in emphysema, leading to their collapse. The second is the chronic inflammation or the bronchiolitis, taking place in the small airways ...

This is because asthma constricts the air vessels in your lungs. Bronchitis refers to inflammation in the small airways in the lungs. When the airways get inflamed, they produce mucus. Mucus helps ...