NLR
The neutrophil-to-lymphocyte ratio interpreted in a longevity context.
What is it
NLR is calculated from the CBC differential. In the longevity context, it reflects chronic inflammatory burden — a hallmark of biological aging studied in research literature.
Why it's measured
NLR has been associated with biological aging signals and mortality risk in published research.
Reference range
Standard laboratory reference
< 2.5 ratio
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
Elevated
Has been associated with elevated inflammatory burden and biological aging signals 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
Calculated from CBC with differential.
Related markers
Measured in
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 →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.