Scientific breakthrough: DNA discovery finds some in 60s have genetic age of 20-year-
 

SEATTLE: Scientists compared the estimated biological ages of 4,000 people with the number of candles on their birthday cake. Some in their 60s had subtle chemical changes in their DNA that boosted their internal age to as high as 114. And others were so genetically youthful they appeared to be in...http://feeds.feedburner.com/~r/com/cwEr/~4/3YoP3A8AeVc

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