definition asthma

Asthma is a chronic respiratory condition in which the airways become inflamed and narrowed, making it difficult to breathe. Symptoms of asthma may include coughing, wheezing, chest tightness, and shortness of breath. Asthma can vary in severity and may be triggered by a variety of factors, such as allergies, respiratory infections, exercise, or exposure to irritants. Treatment for asthma typically involves the use of inhalers or medications to help control symptoms and prevent asthma attacks.