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For the most part, ‘bad luck’ isn’t responsible for cancer
by Catey Hill
Market Watch
Do most people who get cancer simply have bad luck? Or is cancer something they might be able to prevent? A new study suggests the latter.
The study, whose results have just been published in Nature, revealed that it is mostly environmental and external factors like smoking, drinking, diet, getting too much sun and exposure to toxic chemicals that cause cancer, rather than intrinsic factors like random cell mutations.
Intrinsic factors accounted for just 10% to 30% of people’s lifetime risk of getting cancer, while extrinsic risks accounted for 70% to 90% for most common cancer types, the study showed. “Cancer risk is heavily influenced by extrinsic factors,” the study researchers, who work at Stony Brook University in New York, concluded.
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