Topics · Measuring aging
Measurements are clues—not added healthy years.
These stories show what a biomarker or physiology measurement captured, then keep it separate from function, disease, healthspan and lifespan.
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Cold-water studies measure thermogenesis—not longer life
A small study of young male winter swimmers found physiology differences. It did not test disease, function, healthspan or lifespan, and it cannot show that cold exposure caused the findings.
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Newest first, using each story’s primary category. Evidence scope describes what was reviewed; it is not a score.
Cold-water studies measure thermogenesis—not longer life
A small study of young male winter swimmers found physiology differences. It did not test disease, function, healthspan or lifespan, and it cannot show that cold exposure caused the findings.
Human physiology biomarkers · small cross-sectional studyRead the storyHyperbaric oxygen changed selected blood-cell markers—not aging itself
A small uncontrolled study reported telomere and senescent-cell changes in selected blood-cell subtypes. It did not test clinical aging, healthspan or lifespan, and commercial conflicts matter.
Human blood-cell biomarkers · uncontrolled pre/post studyRead the storyWhat an epigenetic clock can—and cannot—tell you
Different clocks target different constructs. A score is not a diagnosis, and changing it does not prove longer life.
Biomarker methods · human validation evidenceRead the storyKeep exploring