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zsolt-dev

Re:Ask HN: What are you working on? (September 2025) on Tuesday September 30, 2025 @06:39AM (#45423933)
Precision health blood result interpretation and biological age clock from routine bloodwork

https://www.longevity-tools.com

All of my interpreters and calculators have (or will soon have) a nice video walkthrough where everything is explained in detail: https://www.youtube.com/@longevity-tools-com

Everything is free

Show HN: Free biological-age calculator from standard bloodwork

https://www.longevity-tools.com/humanitys-bortz-blood-age

Hi HN — first-time poster here!I’m Zsolt. I build blood-interpretation tools used by longevity clinics and try to make everything public.I built this biological-age calculator with help from one of the study authors. It is based on Bortz Blood Age model, which is currently the best public model on standard lab tests (beats PhenoAge). Trained on actual mortality (not chronological age) and...

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