Common causes of lung cancer

There are a number of risk factors that are linked to lung cancer. The most common causes of known are the following: smoking cigarette smoking is probably the most closely related to the development of lung cancer. A person who smokes packages of two or more cigarettes per day has a chance of one in seven of lung cancer. People who smoke a pack of cigarettes a day have a twenty-five times more likely to develop lung cancer not smoker. Also, people who smoke, a tube or a cigar have five times more likely to develop lung cancer not smoker.

The risk of developing lung cancer increases with the number of cigarettes smoked all his life. Smoking harms the cells in the lungs. When you quit smoking, lungs begin healing, replacing normal cells and normal cells are damaged. The risk of developing lung cancer begins to dwindle almost immediately when quitting smoking. Each year you don't smoke, your chances of getting lung cancer falling further. The 15th year, your chances of developing cancer of the lung are on them that a person who never smoked.

Smoke, also known as passive smoking, exposed to second-hand smoke on a regular basis of people will have a higher risk of developing lung cancer, although not smokes themselves. Studies have shown that people who live with a smoker have a higher risk of 24% of contracting lung cancer, most non-smoking. Doctors estimate that about 3,000 lung cancer deaths per year are secondhand smoke-related.

Asbestos exposure to asbestos is another known cause of lung cancer and Mesothelioma-pleural lining of the lung cancer. Asbestos has been widely used in construction and all the days in the late 1800s in products in the early 1960 's. Asbestos is separated into silica fibers in the tissues of well trapped lungs. Mesothelioma is closely linked to exposure to asbestos. There are reported cases of mesothelioma in people who have not been exposed to asbestos at work or in the environment. Non-smoker has been exposed to asbestos is five times greater risk of developing lung cancer in smokers that has not been exposed. Smoking increases the risk-a smoker has been exposed to asbestos is at risk of developing lung cancer, which is 50-90 times the smokers.

Radon gas is estimated at around 12% of all lung cancer deaths can be attributed to gas radon, a colourless, odourless, is a natural by-product of decay of uranium. The environmental protection agency une estimate that as many as 15% of all households in the u.s. unsafe gas radon levels will be responsible for the deaths from 15,000 to 22,000 lung cancer each year.

Air pollution scientists estimate that 1% of all lung cancer deaths are attributable to air pollution. They believe that prolonged exposure to air very polluted may increase the risk of developing lung cancer than a level of passive smoking.