Cancer : The Leading Cancer Killer

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Everyone in the world today has been impacted by cancer in some way. Lung cancer is the leading cancer killer in both men and women in the United States. In 1987, it surpassed breast cancer to become the leading cause of cancer deaths in women. Lung cancer causes more deaths than the next three most common cancers combined (colon, breast and pancreatic). Cancer is a disease in which abnormal cells divide without control and are able to invade other parts of the body, such as tissues and the bloodstream. There are more than 100 types of cancer. Cancer can develop in any organ or tissue. Cancers are named after the organ in which it was started. An example would be that if a cancer began in the colon, it would be named ‘colon cancer.’ In order to be truly informed about cancer, this paper will discuss the causative agent, the signs and symptoms, diagnostic criteria, treatment, and social and economic implications for those with the disease. People put themselves in danger by risking the chances of a premature death and other types of complications from smoking. Lung cancer begins in the cells, or the basic units of life. Cells grow and divide in a controlled manner to produce more cells to keep the body healthy. As cells grow older and are damaged, they are replaced with new cells. Sometimes, cell reproduction goes wrong. The DNA, or genetic material, of a cell can be damaged which produces mutations that affect normal cell growth and division. If this occurs, cells do not
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