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The leading cause of lung cancer is surprising as most would think it is smoking. The real culprit on a global scale is air pollution. The UN released a report citing Ait pollution as the leading cause of lung cancer. I do not have a source for the report but I believe it was released last year.

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10y ago
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9y ago

There is no one main cause for cancer because cancer is a complex group of diseases with many possible causes. The known causes of cancer include genetics, tobacco use, heavy alcohol use, poor diet, body weight, not being physically active, infections, too much exposure to the sun, and exposure to different types of chemicals and radiation.

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16y ago

Toxins in our environment are the leading cause of cancer. Just look up information on the 'Love Canal' and see what toxins can do. The leading cause of childhood leukemia is exposure to toxins.

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13y ago

The number one cause of cancer is lack of consumption of leafy green vegetables, and eating processed food (flour, sugar, artificial colors and preservatives).

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12y ago

caused by cellular gens that control cell growth and division.

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13y ago

nicotine

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12y ago

mutantion

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Q: What is the primary cause of cancer?
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