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Smoking May Permanently Damage DNA: Study

Smoking can permanently damage one's DNA, according to a new study. Researchers at Harvard Medical School’s affiliated Hebrew SeniorLife Institute for Aging Research say smoking leaves a long-term signature on DNA. “Our study has found compelling evidence that smoking has a long-lasting impact on our molecular machinery, an impact that can last more than 30 years,” said Roby Joehanes, first author on the study. “The encouraging news is that once you stop smoking, the majority of...

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