Biological age tests reveal what slows or hastens aging – but they’re useful only for researchers, not consumers

By Idan Shalev, Associate Professor of Biobehavioral Health, Penn State
Abner Apsley, Postdoctoral Researcher in Molecular Biology, University of Illinois at Urbana-Champaign

Imagine receiving a test result that tells you your body is biologically five years older than your chronological age. You exercise regularly, get good sleep, eat healthy meals and have a happy personal life. What have you been doing wrong? Can this test be trusted?

Dozens of companies are marketing products that promise to reveal a person’s “true” biological…

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