Lung disease refers to several types of diseases or disorders that prevent the lungs from functioning properly. Lung disease can affect respiratory function, or the ability to breathe, and pulmonary function, which is how well lungs work.
There are many different lung diseases, some of which are caused by bacterial, viral, or fungal infections. Other lung diseases are associated with environmental factors, including asthma, mesothelioma, and lung cancer.
The most common lung diseases
• Asthma
• Collapse of part or all of the lung
• Swelling and inflammation in the main passages (bronchial tubes) that carry air to the lungs (bronchitis
• COPD (chronic obstructive pulmonary disease
• Lung Cancer
• Lung infection (pneumonia)
• Abnormal buildup of fluid in the lungs
• Blocked lung artery

How can we prevent lung diseases?
• Avoid smoking
• Avoid exposure to indoor pollutants
• Minimize exposure to air pollution
• Exercise
• Go for regular check ups