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Exposure to pollutants, increased free-radical damage speeds up aging, per WVU-led study

Every day, our bodies face a bombardment of UV rays, ozone, cigarette smoke, industrial chemicals and other hazards. This exposure can lead to free-radical production in our bodies, which damages our DNA and tissues. A new study from Eric Kelley—a researcher with the WVU School of Medicine—suggests that unrepaired DNA damage can increase the speed of aging. His results appear in the journal Nature.