Story perspectives

Biological Age Testing Grows Amid Reliability Concerns

4/5/2026

Summary

Story summary

Biological age can diverge from chronological age, according to Dr. Douglas Vaughan, and epigenetic clocks estimate it mainly for research.
The market for biological age testing is growing, according to Vaughan, though these tests are not yet reliable.
Christopher Hine stresses interpreting results cautiously because lifestyle factors can influence outcomes.
Daniel Belsky notes that different epigenetic clocks serve distinct purposes, such as estimating biological age or predicting mortality.

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Story summary

Biological age can diverge from chronological age, according to Dr. Douglas Vaughan, and epigenetic clocks estimate it mainly for research.
The market for biological age testing is growing, according to Vaughan, though these tests are not yet reliable.
Christopher Hine stresses interpreting results cautiously because lifestyle factors can influence outcomes.
Daniel Belsky notes that different epigenetic clocks serve distinct purposes, such as estimating biological age or predicting mortality.