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Stress of violence shows on kids' DNA

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Children who have experienced violence might really be older than their years. The DNA of 10-year-olds who experienced violence shows wear and tear normally associated with aging, a Duke University study has found. The research focused on telomeres, DNA sequences found at the tips of chromosomes. Telomeres are known to get shorter each time cells divide, putting a limit on the number of times a given cell can go on dividing. Smoking, obesity, psychological disorders and stress have been...

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