A new study adds to a growing body of research that suggests our biological age – a measure that's distinct from a person's chronological age – could be reversible.
This new study, which used multiple epigenetic clocks to measure how biological age changes in response to stress in animal models and human datasets, also finds that stress-induced spurts of aging might only be a temporary thing.
Blood samples from elderly trauma patients undergoing emergency surgery showed surges in markers of biological age that returned to baseline a week after the operation. Finding a signal among the noise of millions of cells abuzz with activity is difficult to do, hence why the researchers compared multiple epigenetic clocks. Interestingly, some detected no changes.
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