Chronic Lung Disease refers to a group of long-term respiratory conditions that affect the lungs and airways, making it difficult to breathe. Common types include Chronic Obstructive Pulmonary Disease (COPD), asthma, and pulmonary fibrosis. These conditions can cause symptoms such as coughing, wheezing, and shortness of breath, often worsening over time. The primary causes of Chronic Lung Disease include long-term exposure to irritants like cigarette smoke, air pollution, and occupational dust. Treatment options may involve medications, lifestyle changes, and pulmonary rehabilitation to help manage symptoms and improve quality of life. Early diagnosis and intervention are crucial for better outcomes.