Biological aging clocks offer insights, not diagnostics

The Journal of Medical Internet Research released a feature story on the accuracy and utility of consumer wearables that estimate so-called biological age in its News and Perspectives section. In "Sorting Science From Marketing in the Era of Data-Driven Biological Aging Clocks," JMIR Correspondent Jenna Congdon breaks down the gimmick—how biosensor-enabled devices use proxy data to approximate age, the differences between consumer models and research-grade clinical clocks, and how users can best interpret these metrics.