__________ is a lung disease common among smokers.
The amount of smoke created by a tobacco product depends on the amount of tobacco available for burning. The amount of secondhand smoke emitted by smoking one large cigar is similar to that emitted by smoking an entire pack of cigarettes. Secondhand smoke (also called environmental tobacco smoke, involuntary smoke, and passive smoke) is the combination of “sidestream” smoke (the smoke given off by a burning tobacco product) and “mainstream” smoke (the smoke exhaled by a smoker) (1–4). The association of smoking with lung cancer is strongest, both in the public perception and etiologically. Among male smokers, the lifetime risk of developing lung cancer is 17.2%; among female smokers, the risk is 11.6%. This risk is significantly lower in nonsmokers: 1.3% in men and 1.4% in women. Lung Cancer. Lung Cancer. Lung cancer is the leading cause of cancer death and the second most common cancer among both men and women in the United States. The most important thing you can do to lower your lung cancer risk is to quit smoking and avoid secondhand smoke. Smoking is a major risk factor for heart attacks, strokes, chronic obstructive pulmonary disease (COPD) (including emphysema and chronic bronchitis), and cancer (particularly lung cancer, cancers of the larynx and mouth, and pancreatic cancer). It also causes peripheral vascular disease and hypertension. Toxins in tobacco smoke harm the body from the moment they enter through. the mouth and nose. They damage tissue and cells all the way to the lungs. When cigarette smoke is inhaled, chemicals from the smoke are absorbed in. the lungs. As a result, smoking: Nov. 9, 2010 -- Lung cancer in nonsmokers may be a different disease than lung cancer in cigarette smokers, new research suggests. Accumulating evidence shows striking differences between lung tumors from patients who smoke and those who never smoked. Lung cancer in nonsmokers is more common among women -- Asian women in particular -- than lung cancer in smokers. And lung cancers in smokers tend to carry one particular mutation while those from nonsmokers tend to carry a different mutation. Approximately 3,000 lung cancer deaths occur each year among adult nonsmokers in the United States as a result of exposure to secondhand smoke (2). The U.S. Surgeon General estimates that living with a smoker increases a nonsmoker’s chances of developing lung cancer by 20 to 30 percent (4). 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. 1 Lung injury from tobacco smoke leads to the development of COPD, the. 2  nation’s third largest killer. People with COPD have damaged airways and. slowly die from lack of oxygen. Eight out of 10 cases of COPD are caused by. smoking. The number of Americans suffering from COPD is increasing and. there is no cure for this disease.
Emphysema.