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.
Frequent exposure to other people's smoke can increase your risk of lung cancer, even if you're a non-smoker. Passive smoking also increases your risk of coronary heart disease. Coronary heart disease can cause a heart attack, angina (chest pain) and heart failure. It also increases your risk of stroke. Children and passive smoking