To know your biological age, a test like the ones from the brands mentioned prior is necessary. Its really hard to change what you can't measure, says Trinna Cuellar, PhD, vice president of biology and head of research and development at Tally Health. What we're giving people is a tool to be able to begin to assess how they are ageing. Its important to note that your biological age isnt final, either its a snapshot of how youre ageing at the specific time you took the test. And unlike your chronological age, your biological age can ebb and flow. For example, if I decided to adopt healthier habits such as prioritising better sleep, exercising more often, eating better, drinking less alcohol, etc and I re-took that same biological age test weeks or months later, its likely that my number would be lower.

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Biological Age Is A New Sign Of Health What It Means - Refinery29 Australia