Luck, not lifestyle, may be to blame for some cancers

Aired: 1/2/2015 | 0:04:11 | Clip
A combination of luck, hereditary and lifestyle choices have all been linked to cause cancer. But a new study finds that luck, or random DNA mutation during cell division, is the primary factor behind more cancers than previously thought. Jeffrey Brown speaks with Cristian Tomasetti of Johns Hopkins University about why this news supports healthy lifestyle choices more than ever.

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