What causes lung cancer?

There is no exact cause for why lung cancer develops, however, long term tobacco smoking is the biggest known cause. Even those who do not smoke can develop the disease due to the exposure of second-hand smoke. Every time one inhales smoke, it allows chemicals and carcinogens to damage the cells that line the lung. At first, the body may be able to repair the damage but, with repeated exposure, smoking can cause normal cells to turn into cancer cells over time. 
 
Lung cancer can also develop in patients who do not smoke and have never had prolonged exposure to secondhand smoke. For this reason, doctors and researchers cannot confirm that smoking is the only cause of lung cancer. Lung cancer, like most cancers, can be found in more than one relative if a family member has been diagnosed with the disease. Other risk factors, such as certain working and living conditions, may also contribute to poor air quality that is consistently inhaled and can cause the same damage to normal cells in the lungs as smoking. Prior radiation therapy to the chest is also one of the major causes of lung cancer reoccurring. 
 
 
lung cancer causes
 
 

Sources 
  • "Lung Cancer." Mayo Clinic. Mayo Foundation for Medical Education and Research, 25 Sept. 2015. Web. 26 June 2017.
  • "Lung Cancer." Lung Cancer | Johns Hopkins Medicine Health Library. John Hopkins Health System, n.d. Web. 26 June 2017.

 

From Our Blog: Mesothelioma Prevention - 3 Asbestos Best Practices
Mesothelioma is a form of cancer that attacks the protective layers of your internal organs. Pleural mesothelioma, which affects the lungs, is the most common form of the disease. The main cause of mesothelioma is exposure to asbestos: a combination of six fibrous minerals, which were commonly used by commercial companies throughout the 20th century. In fact, most structures built before 1980 contain asbestos. Commercial and industrial workers are most likely to develop mesothelioma due to their frequent exposure to asbestos. To reduce the risk of exposure in the workplace, here are three best practices to prevent asbestos exposure:

 

mesothelioma prevention - 3 asbestos best practices


 

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