"Cancers of the lung, breast, prostate and colon and rectum have become more frequent in countries with risk factors such as cigarette smoking." (Trichopoulos, Li, and Hunter 1). More than half of the cancer deaths in the United States can be attributed to tobacco smoke. Smoking causes 30 percent of cancer deaths in the U.S. (Trichopoulos, Li, and Hunter 5). "Smoking mainly of cigarettes causes cancer of the lung, upper respiratory tract, esophagus, bladder and pancreas an

d probably of stomach, liver and kidney" (Trichopoulos, Li, and Hunter 5). Smoking is linked in leukemia and may also cause cancer of the colon and rectum and other organs (Trichopoulos, Li, and Hunter 5).

Second hand smoke or passive smoking, the inhaling of tobacco smoke in the environment, causes much less lung cancer than active smoking does. Second hand smoke attributes to a few thousand deaths each year. Passive smoking is as much a killer as general outdoor air pollution or household exposure to the radio active gas radon (Trichopoulos, Li, and Hunter 5). " Two noted cardiology researchers, Dr. Stanton Glantz and Dr. William Parmly, have done a considerable amount of research on the effects of second hand smoke on the heart" (Henahan 1). The data demonstrates the ill effects second hand smoke must be a problem because p

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Approximate Word count = 565
Approximate Pages = 2 (250 words per page double spaced)