Longevity system

Allostatic Load Index

Allostatic Load

A composite measure of chronic physiologic stress on the body.

What is it

Allostatic Load Index — in plain English.

Allostatic load is a composite measure of chronic stress on multiple body systems. It integrates markers from cardiovascular, metabolic, immune, and stress-response systems.

Why it's measured

What Allostatic Load can reveal.

Allostatic load has been studied in research on chronic stress and long-term health outcomes.

Reference range

Where most laboratories draw the standard line.

Standard laboratory reference

Computed from panel index

Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.

What results may indicate

Higher vs. lower Allostatic Load — at a high level.

Elevated

Has been associated with chronic stress and elevated health risks in research literature.

Lower

Generally considered favorable.

These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.

When it's measured

When Allostatic Load is typically run.

Calculated when the full panel is run.

Related markers

Often measured alongside Allostatic Load.

Measured in

Allostatic Load is one of 160 biomarkers in the Apex Panel.

A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.

Explore the Apex Panel
160 biomarkers13 body systemsPhysician-reviewed
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This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.