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建立人际资源圈Lung_Cancer
2013-11-13 来源: 类别: 更多范文
Lung Cancer
Lung Cancer
I am doing my report on lung cancer so I can learn the effects, symptoms and
preventions that I can take to avoid getting this disease. Cancer is a disease in which
cells multiply without control, destroy healthy tissue, and endanger life. About 100 kinds
of cancer attack human beings. Lung cancer is the leading cause of cancer deaths in the
United States, among both men and women. Lung cancer claims more lives then colon,
prostate and breast cancer combined. In 1999 about 91,000 men and 68,000 women died
of lung cancer. The peak age for lung cancer is 65years for men and 70 years for woman.
The disease is uncommon before the age of 40. The exact cause of lung cancer remains
unclear.
Some risk factors of this disease include tobacco smoking, exposure to
carcinogenic and industrial air pollutants and genetic predisposition. Lung cancer is also
among the most preventable of all cancers. Smoking alone accounts for about 85 percent
to 90 percent of lung cancer cases. Although the mortality rate for men has decreased the
rate for women has increased. One reason may be that although smoking rates have
decreased overall, the rate decreased more
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