Sociology is the study of human social relationships and institutions. Sociologyâs subject matter is diverse, ranging from crime to religion, from the family to the state, from the divisions of race and social class to the shared beliefs of a common culture, and from social stability to radical change in whole societies.
Smoking leads to the lung disease, emphysema. In smokers, the presence of irritants in the mucus build up in the lungs and causes inflammation. A large number of phagocytic white blood cells migrate to the alveoli. The elastase produced by these cells breaks down elastin and other proteins in the wall of the alveoli.
The most common symptom of lung cancer is a cough caused by a blockage of the air passage to the lung as the tumor grows. Smoking is a major cause of lung cancer, as well as other cancers and diseases, such as emphysema and chronic bronchitis.Smoking is considered the single largest unnecessary and.MOKING: THE NUMBER ONE CAUSE OF LUNG CANCER. Lung cancer is a disease in which a primary cancer (the original site where the cancer occurred) develops in the tissue of the lungs.