Lung Diseases: An Evidence-Based Approach - Hardcoverby Nicholas Clarke (Editor) The lungs are two air filled and spongy organs that are situated on either side of the chest. The heart and lungs work together to make sure the body receives enough supply of oxygen. Lung diseases are a variety of conditions or diseases that impair the ability of the lungs to function normally. These diseases can have an impact on pulmonary function and the capacity to breathe. Lung diseases can be classified into three