Bryan Johnson, the tech entrepreneur behind Blueprint, has made headlines by spending over $2 million per year attempting to reverse his biological age. His protocol involves dozens of supplements, precise meal timing, extensive blood panels, and a team of doctors. The results? He claims to have the heart of a 37-year-old, the fitness of an 18-year-old, and biological markers decades younger than his chronological age.

But here's the thing: you don't need millions to track your biological age. The core metrics Bryan monitors—VO₂max, heart rate variability (HRV), resting heart rate, sleep quality, and recovery capacity—are all available through your Apple Watch and iPhone. My Bio Age turns this data into a comprehensive biological age score, giving you Bryan Johnson-level insights without the Blueprint budget.

What Bryan Johnson actually tracks

Strip away the supplements and medical interventions, and Bryan's longevity protocol centers on a few key biomarkers that predict healthspan and lifespan:

VO₂max (cardiorespiratory fitness) — The single strongest predictor of all-cause mortality. Bryan aims for elite athlete levels.
Heart rate variability (HRV) — Reflects autonomic nervous system balance and recovery capacity. Higher is generally better.
Resting heart rate — Lower resting HR typically indicates better cardiovascular fitness.
Sleep duration and quality — Bryan is famous for his strict 8:30 PM bedtime and sleep optimization.
Recovery metrics — How quickly your body bounces back from stress and exercise.

These exact metrics are what My Bio Age uses to calculate your MyBioAge Index™. Your Apple Watch already collects this data—you just need the right app to synthesize it into actionable insights.

The MyBioAge Index™: Your personal Blueprint dashboard

My Bio Age combines 12 scientifically-weighted health signals into a single biological age score. VO₂max is the largest contributor—just as longevity researchers like Peter Attia and Bryan Johnson emphasize—followed by HRV, sleep metrics, recovery capacity, and cardiovascular indicators.

Every Monday at 9 AM, you receive an in-app digest summarizing your week: what improved, what declined, and which metrics drove the changes. It's like having a longevity coach review your data weekly—except it all happens on your device with zero cloud uploads.

Pace of Aging: Are you aging faster or slower than time?

Bryan Johnson tracks whether he's biologically aging slower than chronological time. My Bio Age includes the same capability with Pace of Aging—a feature that compares your biological age changes over 4-week and 14-week windows to calendar time.

Green (<1.0×) — You're aging slower than time. Your biological age is decreasing relative to your chronological age.
Amber (1.0×–1.05×) — Aging roughly on pace with time.
Red (>1.05×) — Aging faster than time. Time to adjust your habits.

This is the same concept Bryan uses when he says he's "reversing age"—and now you can track it yourself.

Ask your health data anything with AI

Bryan has a team of doctors interpreting his data. My Bio Age includes an on-device AI Coach that answers questions about your health metrics in plain language. Ask "Why did my HRV drop this week?" or "How can I improve my VO₂max?" and get personalized answers based on your actual data—not generic advice.

The AI runs entirely on your iPhone using local language models. Your health conversations never leave your device, matching the privacy standards you'd expect from a premium longevity service.

What you can do today

Download My Bio Age from the App Store and connect Apple Health.
Check your MyBioAge Index™ to see your current biological age estimate.
Review your Pace of Aging to see if you're trending younger or older.
Ask the AI Coach what's driving your score and how to improve.
Check your Monday digest each week to track progress over time.

Bryan Johnson's Blueprint protocol is inspiring, but you don't need his budget to take control of your biological age. The data is already on your wrist—My Bio Age helps you understand it.