Asthma is a chronic (long-term) respiratory disease where the airways become inflamed and narrow, making breathing difficult.

How It Works:

Asthma causes three main changes in the airways, especially when exposed to a trigger:

Inflammation: The airway lining swells.

Bronchospasm: Muscles around the airways tighten (constrict).

Mucus Production: Excess mucus clogs the narrowed airways.

Symptoms (Flare-up/Attack):

Wheezing: A high-pitched, whistling sound when breathing out.

Shortness of breath or difficulty catching a breath.

Chest tightness or pressure.

Coughing, especially at night or early morning.

Common Triggers:

Allergens (pollen, dust mites, pet dander).

Respiratory infections (colds, flu).

Irritants (smoke, strong fumes, air pollution).

Exercise (exercise-induced asthma).

Cold air or sudden temperature changes.