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Inflammation
IL-6
Research-stage biomarkerCytokineBloodpg/mL
An inflammatory signaling cytokine widely studied in aging research.
What it measures
Circulating interleukin-6.
Why it matters
Higher IL-6 is associated with inflammatory states and adverse aging-related outcomes in cohorts.
How to interpret it
Primarily useful in research; results depend on assay and clinical context.
Important limitations
Not a routine general-population longevity test and can change during acute inflammation.
Evidence status
Research-stage biomarker
Important geroscience marker with association evidence; routine longevity interpretation is not established.
Research & guidance
Original papers, validation studies, reviews and clinical guidance connected to this measurement.
For education and evidence exploration, not diagnosis or individualized medical advice.