Longevity · 4 min read
Biological age vs. the calendar
Your birthday tells you your chronological age. It says surprisingly little about how your body is actually aging. That gap is the whole point of biological-age testing.
What biological age estimates
Biological-age measures use biomarkers, patterns in your blood and in some cases epigenetic markers, to estimate how your body compares to typical aging for your chronological age. The result is an estimate, not a verdict.
Why a number you can re-measure is useful
The real value is not the first number. It is the second, and the third. A baseline you return to turns vague intentions into something you can watch respond to the changes you make.
The limits worth knowing
- These are estimates, and different tests use different methods
- No single number captures your whole health picture
- Trends over time tell you more than any one reading
- It informs decisions, it does not make them for you
Published . Medically reviewed by Scott Faulkner, MD, Medical Director, Castle Rock Regenerative Healthcare. This article is educational and is not medical advice. Individual results vary.
Curious where you would begin?
A free 30-minute consultation is the simplest way to get started. One of our providers answers your questions and tells you whether it looks like a fit, and we book your visit from there.