The human nature is suspicious about his Thinking .Noone can guess exactly that what a person can think in real.
some persons are also not carefull about their health.
so please be carefull about the smoking .becouse it will be harmfull forevern after left it.
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<!-- Insert Wikipedia Link --> Lung Cancer <!-- Insert Wikipedia Link -->
<!-- Begin Top Text --> Lung canceris a disease of uncontrolled cell growth in tissues of the lung. This growth may lead to metastasis, which is the invasion of adjacent tissue and infiltration beyond the lungs. The vast majority of primary lung cancers arecarcinomas of the lung, derived from epithelial cells. Lung cancer, the most common cause of cancer-related death in men and the second most common in women (after breast cancer).
The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss. The main types of lung cancer aresmall cell lung carcinomaandnon-small cell lung carcinoma. This distinction is important, because the treatment varies; non-small cell lung carcinoma (NSCLC) is sometimes treated with surgery, while small cell lung carcinoma (SCLC) usually responds better to chemotherapy and radiation. The most common cause of lung cancer is long-term exposure to tobacco smoke. The occurrence of lung cancer in nonsmokers, who account for as many as 15% of cases, is often attributed to a combination of genetic factors, radon gas, asbestos, and air pollution, including second hand smoke.
Lung cancer may be seen on chest radiograph and computed tomography (CT scan). The diagnosis is confirmed with a biopsy. This is usually performed via bronchoscopy or CT-guided biopsy. Treatment and prognosis depend upon the histological type of cancer, the stage (degree of spread), and the patient's performance status. Possible treatments include surgery, chemotherapy, and radiotherapy. With treatment, the five-year survival rate is 14%. <!-- End Top Text -->
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<!-- Begin Q & A --> Q & A about lung cancer:
How common is lung cancer?
Lung cancer is responsible for the most cancer deaths in both men and women throughout the world. The American Cancer Society estimates that 215,020 new cases of lung cancer in the U.S. will be diagnosed and 161,840 deaths due to lung cancer will occur in 2008. According to the U.S. National Cancer Institute, approximately one out of every 14 men and women in the U.S. will be diagnosed with cancer of the lung or airways at some point in their lifetime. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with the condition are over 65 years of age, while less than 3% of cases occur in people under age 45.
What causes lung cancer?
Cigarette smoking is known to be the cause of most lung cancers. The more you smoke, the greater your risk of developing lung cancer. Lung cancer is also more likely to develop in people who start smoking at a young age. People who don't smoke can also develop lung cancer, although this is much rarer. Filtered and low-tar cigarettes may slightly reduce a person's risk of developing cancer, but the risk is still far greater than that of a non-smoker. <!-- End Q & A -->
