LifeLeaf Age
One number from four drivers, and which one is moving it.
Cardio, Metabolic, Recovery and Vascular. Not a biological-age test: it tells you where to look.

Two cars leave the factory the same day. Ten years later, one has a rebuilt engine and worn tires, the other new tires and an old engine — same age, very different cars. The four driver ages are the gauges behind the LifeLeaf Age display.
At a glance
- The question
- How does my body's current pattern compare with what is typical for my age?
- Reported as
- An age in years, plus four driver ages
- What matters most
- Which way the trend is going, and which driver is moving it
- Best use
- Choosing which part of your routine to work on next
- What it is not
- A measure of cell age, an organ scan, or a guess at how long you'll live


Who it’s for
- Already tracking, and drowning in itone number to follow, and four drivers that say what to work on.
- A big birthday, and no starting pointa starting point that updates daily, with a 30- and 90-day direction.
- Working on weight, or on a GLP‑1whether the metabolic and recovery ages follow the weight. It never guides a dose.
- Navigating pregnancyextra awareness only, in Pregnancy mode. Prenatal care stays exactly the same.
Example
A busy month for Maya, 48.
- Three short nights, less movementthe 30-day trend moves the wrong way
- She opens the driversRecovery Age moved most; the other three held
- She wore it all monththe pattern has real support behind it
- She protects a sleep window for two weeksshe watches Recovery Age, not the headline

Same age, different reason

Maya
Recovery Age, after short nights
protect the sleep window.

Daniel
Vascular Age, a repeating blood-pressure pattern
confirm it with a real cuff before reading anything into it.
Same number on the front, two different problems underneath.
Four driver ages
The gauges behind the dashboard.
Cardio Age
resting pulse, breathing, exercise recovery
How is the engine, at rest and when asked to work?
Recovery Age
sleep, HRV, resting pulse, overnight patterns
How well does the body settle and repair overnight?
Vascular Age
estimated pressure, pulse pressure, timing
How much load are the pipes carrying, and does it ease at night?

How the four combine: each driver age compares your recent pattern in that category against what's typical for your age.
They roll up into one LifeLeaf Age number the same way Stability, Recovery and Balance are built — sensed, compared to a target, counted only when the data is confident.
The exact weighting stays proprietary; the inputs and the direction don't.
Use it without overreacting
- Noticethe 30-day trend shifted
- Checkwas it worn enough?
- Explainopen the driver that moved
- Tryone low-risk habit, long enough to compare
- Learnthe driver often improves before the headline does

What this number can’t tell you.
- It is a wellness estimate, not a biological-age test.
- A higher or lower number doesn't diagnose anything.
- Don't chase the day. Read the trend and the drivers.
- Symptoms, or patterns that keep repeating, go to a clinician.
Research shows different body systems can age at different rates in the same person (Nature, 2023; Nature Medicine, 2023). The score built on that is our design; the exact weighting is proprietary.
How do I get it
Join the waitlist.
We’ll email you launch updates and the moment Kickstarter opens at the end of October. Deep‑discount packages are limited and go first-come, first-served.
Free to join — or reserve now for $2 to lock founder pricing.