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Smoking Smothers Your Genes – ScienceNOW

Cigarettes leave you with more than a smoky scent on your clothes and fingernails. A new study has found strong evidence that tobacco use can chemically modify and affect the activity of genes known to increase the risk of developing cancer. The finding may give researchers a new tool to assess cancer risk among people who smoke.

via Smoking Smothers Your Genes – ScienceNOW.