Want to live longer? First find out how old you really are

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September 25, 2025 Want to live longer? First find out how old you really are By Dominique Mosbergen Correspondent You know your age, but do you really know how old you are? Dr. Douglas Vaughan, director of Northwestern University's Potocsnak Longevity Institute and its Human Longevity Laboratory, spoke to TIME about how your biological age—the age of your cells and organs—may differ from the age on your driver's license. Addressing this gap could help people live healthier for longer. READ MORE » If you have a minute, please take our quick survey to help us better understand who you are and which health topics interest you most. Take the Survey WHAT ELSE TO READ How to Stop Procrastinating at Bedtime and Actually Go to Sleep Move up your "me" time.   10 Things to Say When Someone Won't Get Off Their Phone "Is now a good time to talk, or should I come back when you're done?"   5 Things You're Forgetting to Clean (But Really Should) These household items are harboring the most bacteria.   If you were forwarded this and want to sign up to receive it daily, click here. Today's newsletter was written by Dominique Mosbergen and edited by Angela Haupt.   Want more from TIME? Sign up for our other newsletters.         Subscribe to TIME TIME may receive compensation for some links to products and services in this email. Offers may be subject to change without notice. Connect with TIME via Facebook | Twitter | Newsletters PRIVACY POLICY | YOUR CALIFORNIA PRIVACY RIGHTS Questions? Contact newsletters@time.com Update your email preferences or unsubscribe here © 2025 TIME USA, LLC. All rights reserved. TIME Customer Service, P.O. Box 37508 Boone, IA 50037-0508, United States of America Terms of Service