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Conor's avatar

PhenoAge can be easily calculated at home from standard blood test results, no need to pay a company to do it for you. I think using Own Your Labs the bloodwork should cost about $30. The additional benefits are the ability to see which factors are making you younger or older.

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Richard Sprague's avatar

Very cool! I did not know about this, thank you! And I see there are online calculators (you can Google) that make it easy to calculate your PhenoAge from the standard blood tests.

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Eric Jain's avatar

"Biological age" tests can be useful/educational, provided they let you drill down and discover what the biggest (improvable) factors are...

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owen's avatar

Great article — I love how you explore different ways to measure biological age and the idea that appearance-wise age can tell us something interesting about health and aging.

个人科学

One quick free tool that complements the approaches you mentioned is https://howolddoilook.online/

. While it’s not a biological age test like methylation or retinal imaging, it uses AI to estimate how old you appear based on a photo. Unlike many online services, the AI runs directly in your browser and your photo is not uploaded to a server, which helps protect privacy.

For anyone curious about how age-estimation AI compares to more expensive biological tests, this can be a fun and immediate way to get a feel for how computer vision models interpret facial aging.

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