They cannot identify the cause that cause lung cancer. But there are some factors that may increase the risk of lung cancer, such as.Smoking may cause lung cancer the most. People who smoke are at risk of lung cancer than those who are not smoking up to 10-30 times because smoking can damage cells in the lung to cause deformation of the cell by the risk is increased by the number of cigars, and number of years smoking.The pollution and toxins in the environment, such as cigarette smoke. Sabet (asbestos), stump the app gas radon (radon), radiation, and other chemicals, arsenic, including dust and vapors of nickel, chromium and other metals.Age: the risk of lung cancer increases with age. In General, the risk increases after the age of 40 years, but it can be found in people younger than 40 years old.There is a family history of lung cancer. Those who are parents, brothers develop lung cancer. There is a risk of lung cancer, even when they aren't smoking.
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