Health Issues – 5 Causes of Lung Cancer in Non-Smokers

5 Causes of Lung Cancer in Non-Smokers
 Cancer
While cigarette smoking is an undisputed cause of lung cancer , not all cases of lung cancer occur in smokers or former smokers. Each year, over 170,000 Americans develop lung cancer , and approximately ten per cent of lung cancers, or 17,000 cases, occur in non-smokers. Although not every non-smoker suffering from lung
cancer will have an identifiable risk factor for development of the disease, a number of conditions and circumstances have been identified that will increase a non-smoker’s chance of developing lung cancer .
1. Passive smoking, or the inhalation of tobacco smoke from other smokers sharing living or working quarters, is an established risk factor for the development of lung cancer. Non-smokers who reside with a smoker have a 24% increase in risk for developing lung cancer when compared with other non-smokers. Each year, up to 3,000 lung cancer deaths are estimated to occur in the U.S. that are attributable to passive smoking .

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