Bad luck to blame for two-thirds of cancer cases

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Bad Luck To Blame For Two-Thirds Of Cancer Cases

New research suggests the majority of adult cancer cases are caused by bad luck.

Johns Hopkins researchers found two-thirds of adult cancers are primarily caused by random mutations that take place when stem cells divide. (Video Via National Cancer Institute)

HealthDay explains stem cells naturally regenerate to replace cells that have already died.

Every time this happens, there's a chance that some of the cell's DNA can mutate. The more mutations, the greater a person's risk of developing cancer. (Video via YouTube /

Researchers note it is usually a combination of luck, environment and heredity that can cause cancer, but it generally still all comes down to luck- giving the example of smoking.

While smoking raises cancer risk, in rare cases, lifelong smokers might never develop any complications. Basically, they can get really lucky. (Video Via CNN)

"Many forms of cancer are due largely to the bad luck ... regardless of lifestyle and heredity factors. The best way to eradicate these cancers will be through early detection, when they are still curable by surgery," said researcher Bert Vogelstein.

Researchers believe this study may alter people's perception about cancer risk and aid in the development of new strategies to fight cancer.
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