Developmental Programs Could Help Drive the Aging Process
Why do we age? For decades, one of the dominant explanations has been that cells and tissues gradually accumulate molecular damage until they can no longer function normally. DNA mutations, damaged proteins, mitochondrial dysfunction, epigenetic alterations, and other forms of cellular wear have all been proposed as major drivers of aging. But another theory offers a very different possibility: some aspects of aging may result not from biological systems breaking down, but from developmental programs continuing to operate after they are no longer beneficial. A research perspective published…
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