The Precision
Health Course
There are 5 measurable numbers that predict how well you'll age. Most people don't know a single one. This course changes that.
Hear It From Dr. Han
A quick introduction to the course and why these 5 numbers matter
Sound familiar?
This course was built for people who are done guessing and ready to take control.
You work out but don't know if it's working
You show up to the gym, go for runs, eat "pretty healthy" — but you have no proof any of it is actually moving the needle on your longevity.
You've got nagging issues you've "just accepted"
The stiff back. The knee that flares up. The energy dips after 2pm. You've learned to work around them instead of solving them.
You want to age on your terms
You've seen what happens when people don't take health seriously. You want a real plan — not another generic article or influencer hack.
The 5 Numbers That Predict How You Age
Research shows these 5 measurable markers are the strongest predictors of healthspan and longevity. Most people have never tested a single one.
What's Inside
8 focused modules. Each one teaches you what a number means, why it matters, and what to do about it — starting today.
The Wake-Up Call
Why your annual physical isn't telling you what you need to know — and the 5 numbers that actually predict how well you'll age.
+ Self-Assessment WorksheetYour Cardiorespiratory Engine
VO2 Max is the single strongest predictor of all-cause mortality. Learn what it is, how to estimate yours, and how to start training it this week.
+ Zone 2 Training Starter PlanYour Body's Real Language
Movement quality reveals what pain and stiffness are hiding. 4 self-assessment tests you can do at home — and a 7-day challenge to start improving.
+ Movement Assessment & 7-Day ChallengeThe Strength You're Losing
After 30, you lose 3–5% of muscle mass per decade — unless you fight back. The "Non-Negotiable 5" exercises that protect your future independence.
+ Strength Program WorksheetYour Metabolic Truth
Why calorie calculators lie. How to uncover your real metabolic rate and build a nutrition approach based on data — not trends.
+ 7-Day Nutrition Awareness TrackerThe Recovery Equation
Sleep, stress, and recovery aren't "nice to haves" — they're the multiplier for everything else. Find your biggest recovery leak and fix it.
+ Sleep & Recovery AuditYour Biological Age
Chronological age is fixed. Biological age is changeable. Learn how it's measured, what influences it, and your complete Longevity Action Plan.
+ Longevity Action Plan WorksheetThe Optimization Layer BONUS
Wearables, peptides, hyperbaric oxygen, regenerative therapy, and advanced recovery — what's available and how to explore it responsibly.
+ Optimization Guide WorksheetEverything You Get — Free
Dr. Jason Han
Former U.S. National Team athlete. CEO of HealthFit Physical Therapy & Chiropractic in Pasadena, CA. Author of The Martial Arts of Listening. Dr. Han has spent his career bridging the gap between pro-level performance science and everyday health — helping real people stop guessing and start executing.
“Your future self will thank you for what you do today.”
Stop Guessing.
Start Knowing.
Get the complete Precision Health Course — 8 modules, worksheets, self-assessments, and a clear action plan. On us.