Most cancer cases 'due to bad luck'

Cancers caused by a combination of bad luck, environmental factors, and inherited factors, according to research by Johns Hopkins School of Medicine Most cases of cancer are the result of sheer bad luck rather than unhealthy lifestyles, diet or even inherited genes, new research suggests. Random mutations that occur in DNA when cells divide are responsible for two thirds of adult cancers across a wide range of tissues, a study has shown.

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