How Does Smoking Cause Lung Cancer
in the United States more than 430,000 people each year are killed by cigarettes. In fact, smoking is directly responsible for most cases of lung cancer (87 percent), 90 percent of new smokers are children and teenagers, in many cases, replacing the smokers who quit or die prematurely from smoking-related illnesses.
Smokers not only increase the risk of lung cancer, but also increases the risk of heart disease, stroke, emphysema and cancer of the mouth.
The symptoms of smoking-related lung diseases may resemble other lung conditions or medical problems.
Most lung cancer (90 percent) is due to smoking. A number of diverse genetic abnormalities have been identified in lung cancer cells. Some genetic abnormalities may be causal (ie, the responsibility to initiate the development of cancer), while others may even show development of cancer.
Lung cancer can spread to lymph nodes or other tissues in the chest, including lungs. Lung cancer can also spread to other organs of the body, such as bone, liver or brain. Lung cancer is the leading cause of cancer deaths in U.S. men and women. Studies show that tobacco products in any form of smoking is the leading cause of lung cancer.
The disease is more prevalent in men than in women, and among men the most common among black men, and among women it is most common among white women.
Lung cancer survival rates indicate the percentage of people with a particular type and stage of lung cancer who survive the disease for a period of time after their diagnosis. In most cases, statistics refer to the level of 5-year survival. Level 5-year survival is the percentage of people living 5 years after diagnosis of lung cancer, if they have little or no signs or symptoms of lung cancer, free of disease, or receiving treatment for lung cancer.
Category Article lung cancer
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