Lung Disease Study
Chapter 1 Introduction and objectives:
1.1 Lung diseases and their impacts on individuals and world population:
Lung diseases are defined by U.S. National Library of Medicine as any respiratory problem that obstructs the lungs from proper functioning. These diseases may be categorised in the following manner:
Airway diseases: these diseases either narrow or block the tubes that carry the air. These diseases are “asthma, emphysema, bronchiectasis, and chronic bronchitis” (U.S. National Library of Medicine, N.D.).
Lung tissue diseases: these diseases cause inflammation to the tissue and preventing it from becoming fully expanded when breathing.
Lung circulation diseases: these diseases influence the lung blood vessels. They obstruct the lung ability of keeping oxygen and releasing carbon dioxide. They may also result in affecting heart functioning (U.S. National Library of Medicine, N.D.).
Smoking, pollution, dusts and chemicals are major factors leading to lung diseases (American Lung Association, 2015). Chronic lung diseases obstruct peoples’ daily life and prevent them from staying physically active and also have an economic impact on patients and their families (WHO, 2015). In addition, a number of studies have reported an association between lung diseases and psychological (Nicolson and
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