Live·Open questions in longevity research

Indicator or biomarker

Functional performance measurements

Measurements of function and recovery over time or following a challenge

Hypotheses on this target 1

Functional performance measurementsTelling states apart. Hypotheses on this target 0Direct measurement. Hypotheses on this target 11Indicator replacement. Hypotheses on this target 0

Direct measurement1

  • Unequal test timing creates the apparent harm from meal timing after tissue replacement

    Where this hypothesis actsRecovery testing under different replacement-status and meal-timing conditions

    What is proposedMeasure function across the daily cycle with phase-balanced recovery testing

    With whatInstrument or assay

    HowRandomize test timing, balance challenges for biological phase and time since feeding, and use separate animal sampling cohorts to avoid repeated-testing fatigue

    Possible resultExpected absence of sustained recovery deficits despite reproducible apparent harm in fixed-clock tests

    2026-09-17