Researchers Outline 5 Free Biological-Age Tests as Costly Epigenetic Clocks Gain Attention
Updated
Updated · Grazia USA · Jun 16
Researchers Outline 5 Free Biological-Age Tests as Costly Epigenetic Clocks Gain Attention
1 articles · Updated · Grazia USA · Jun 16
Summary
Five no-cost checks can offer a rough read on biological age without paid DNA tests: perceived facial age, one-leg balance, VO2 max, hearing range, and the PhenoAge calculator using nine routine blood markers.
Twin research involving nearly 1,000 pairs over age 70 found older-looking faces predicted earlier death, while balance and fitness tests track systems that deteriorate with age and are tied to frailty and mortality.
VO2 max stands out as a strong marker: a 2018 study found people in the bottom 33% were almost twice as likely to die as those in the top third, and smartwatch estimates can shift calculated age by about a decade.
Hearing also offers a clue—loss above roughly 11,000Hz suggests a hearing age over 50—and matters because untreated hearing decline is linked to higher dementia risk, while hearing aids can reduce cognitive decline risk.
Researchers say no single measure captures true biological age; together, the tests point to practical interventions such as exercise, sun protection and early hearing care rather than a definitive age score.