Reasons of getting lung cancer

by Ansu Abraham

Smoking cigarette smoking is one of the main reasons of lung cancer. 90% of the cancers have been caused by use of tobacco. Tobacco smoke contains over 4,000 chemical compounds, many of which have been shown to be cancer-causing or carcinogenic. The two primary carcinogens in tobacco smoke are chemicals known as nitrosamines and polycyclic aromatic hydrocarbons. The risk of developing lung cancer decreases each year following smoking cessation as normal cells grow and replace damaged cells in the lung. In former smokers, the risk of developing lung cancer begins to approach that of a nonsmoker about 15 years after cessation of smoking.

Passive smoking Passive smoking, or secondhand smoke also referred to as environmental tobacco smoke (ETS), presents another risk for lung cancer. An estimated 3,000 lung cancer deaths occur each year in the U.S. that are attributable to passive smoking.

Asbestos fibers Asbestos fibers are silicate fibers that can persist for a lifetime in lung tissue following exposure to asbestos. The workplace is a common source of exposure to asbestos fibers. Today, asbestos use is limited or banned in many countries. Lung cancer is associated with exposure to asbestos. Cigarette smoking drastically increases the chance of developing an asbestos-related lung cancer in workers exposed to asbestos.

Radon gas Radon gas, which occurs naturally in rocks and soil in certain areas, may cause lung damage and may eventually result in lung cancer if it seeps into your home. The presence of radon in the home can be measured using an inexpensive kit that can be purchased at department or hardware stores.

Survivors of lung cancer have a greater risk of developing a second lung cancer than the general population has of developing a first lung cancer.

Air pollution Pollution from vehicles, factories and power plants increases the risk of developing lung cancer. Exposure to air pollution is very similar to prolonged exposure to passive smoking. Air pollutants raise a high chase of developing lung cancer.

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