How to Test Your Biological Age for Free: 7 At-Home Tests
Hi friend,
You can predict someone's age without ever seeing their face.
Their cells, muscles, and metabolism all leave biological fingerprints that tell the truth about how old they really are.
This principle is true for the age of your heart, lungs, liver and the rest of your 70+ organs.
Your body has hundreds of different biological ages.
Today, we are going to share 7 at-home tests that you can do for free to discover your various biological ages.
These will test your:
- metabolic health
- cardiovascular disease risk
- balance
- flexibility
- upper and lower body strength
- reaction time
If you're not happy with your result, don't stress, you can improve them quickly with practice.
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Seven Free Biological Age Tests
Be well, Blueprint
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Originally published in Bryan Johnson's Blueprint newsletter (December 26, 2025). This content is for informational purposes only and is not medical advice. Consult your healthcare provider before starting any new wellness protocol.