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.
Most people know smoking causes lung cancer and heart attacks. But you can add colorectal cancer to the list. Smokers are 18% more likely than nonsmokers to develop colorectal cancer, and 25% more likely to die from the disease, according to a 2008 study.