sciencehabit writes "As we age, the core of our biological being — the sequence of our DNA, which makes up our genes — remains the same. Yet recent research suggests that more subtle chemical changes to our DNA occur as we age. Now, a comparison of the DNA of a newborn baby with that of a centenarian shows that the scope of these changes can be dramatic, and they may help explain why our risk of cancer and other diseases increases as we get older."
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