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Misconceptions about cancer


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Posted 04 September 2006 - 10:25 AM

Epidemiological studies have identified the factors that are likely to have a major effect on lowering rates of cancer: reduction of smoking, improving diet (e.g., increased consumption of fruits and vegetables), hormonal factors and control of infections. Although some epidemiologic studies find an association between cancer and low levels of industrial pollutants, the associations are usually weak, the results are usually conflicting and the studies do not correct for potentially large confounding factors like diet. Moreover, exposures to synthetic pollutants are tiny and rarely seem toxicologically plausible as a causal factor, particularly when compared to the background of natural chemicals that are rodent carcinogens.



http://www.ncpa.org/...s214/s214a.html
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