PhenoAge Gap — Am I Normal?
Your phenotypic age minus your calendar age — negative means your body is younger. Get it from the Phenotypic Age Calculator.
What is a good PhenoAge gap?+
The gap is your phenotypic (blood-based biological) age minus your chronological age. Negative is good — it means your physiology looks younger than your birthday. A gap of about −5 years or lower is excellent; positive values mean your body is aging faster than the calendar and is a prompt to act on the modifiable markers (glucose, inflammation, metabolic health).
How do I get my PhenoAge gap?+
Use the Phenotypic Age Calculator (linked below), which turns nine standard blood markers into your phenotypic age via the Levine 2018 algorithm. Subtract your calendar age from that — or just read the "Δ years" the calculator shows — and submit it here to see where you sit versus the community.
Is the community comparison clinical?+
No — it is a peer comparison among health-focused readers who tend to skew younger-than-calendar, so the crowd median is not a clinical norm. The value of PhenoAge is the trend in your own gap over time, not your rank against others.
How do I improve my PhenoAge gap?+
The glucose and hs-CRP (inflammation) inputs usually move it the most: improving insulin sensitivity, losing visceral fat, regular exercise, and better sleep lower both. Re-run the same blood panel every 3–6 months and watch the gap shrink.
See how you compare.
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