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flag A blood test measuring piRNAs predicts longevity in adults 71+ with 86% accuracy, outperforming traditional health markers.

flag A blood test measuring piRNAs, a type of small RNA, can predict with up to 86% accuracy whether adults aged 71 and older will survive at least two more years, according to a 2026 study by Duke Health and the University of Minnesota. flag Analyzing over 1,200 blood samples, researchers found lower levels of specific piRNAs linked to longer survival, outperforming traditional health markers. flag The findings, validated in an independent group and published in Aging Cell, suggest piRNAs may serve as biological indicators of aging. flag While their exact role remains unclear, the test could one day help guide early interventions to promote healthy aging.

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