Most cancer cases 'caused by lifestyle, environment - not bad luck'

Lifestyle behaviors and environmental factors account for around 70-90% of cancer cases, according to new research published in the journal Nature. 

The study contradicts a study published in the journal Science in January, which suggested the majority of cancer cases are down to "bad luck." In that study, Johns Hopkins researchers claimed 65% of cancer cases are a result of random DNA mutations, while the remaining 35% of cancer cases are explained by a combination of these mutations and environmental and hereditary factors.

'People can't hide behind bad luck' is the result of the new study. The team says their overall findings indicate that lifestyle and environmental factors account for around 70-90% of cancer cases, while intrinsic factors account for around 10-30% - findings that highly contradict those of the Science study.

Original source

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