3 Things You Can Do to Age in Reverse with Dr. Kara Fitzgerald


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It’s true: getting older is inevitable, and our chronological age can only move in one direction. But we also have a biological age, which scientists can measure by assessing how our genes are expressed through epigenetics.

On today’s mini-episode, Dhru sits down with Dr. Kara Fitzgerald to talk about the exciting new research that shows our biological age can actually move in reverse and her groundbreaking, clinical trial that proved it’s possible.

Dr. Fitzgerald received her doctorate in naturopathic medicine from the National College of Natural Medicine in Portland, Oregon. She has been published in numerous peer-reviewed journals and is the host of the New Frontiers in Functional Medicine podcast. Dr. Fitzgerald is also on faculty at the Institute for Functional Medicine and is an Institute for Functional Medicine certified practitioner. She regularly lectures internationally for several organizations and is in private practice in Sandy Hook, Connecticut. Her study Potential Reversal of Epigenetic Age Using a Diet and Lifestyle Intervention: A Pilot Randomized Clinical Trial is the first of its kind to show biological age reversal in humans.

In this episode we dive into:

  • The top three things you can do to age in reverse 
  • Why stress is one of the biggest drivers of aging 
  • How much of our genetic makeup is set in stone 
  • How epigenetics is involved in cellular aging 
  • DNA methylation and how it powerfully influences epigenetic expression 
  • Zombie cells and aging 
  • Dr. Fitzgerald’s study for aging in reverse and the protocol followed by the participants 

Listen to the full episode here.

For more on Dr. Kara Fitzgerald, follow her on Instagram @drkarafitzgerald, Facebook @drkarafitzgerald, Twitter @kfitzgeraldnd, YouTube @karafitzgeraldnd, and through her website, drkarafitzgerald.com. Get her book, Younger You: Reduce Your Bio Age and Live Longer, Better, here. Check out her podcast, New Frontiers in Functional Medicine, here.

For more on Dhru Purohit, follow him on Instagram @dhrupurohit, Facebook @dhruxpurohit, Twitter @dhrupurohit, YouTube @dhrupurohit, and TikTok @dhru.purohit. Text Dhru at 302-200-5643 or click here

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Wishing you health and happiness,
Mark Hyman, MD
Mark Hyman, MD


Mark Hyman, MD

Mark Hyman, MD is the Founder and Director of The UltraWellness Center, the Head of Strategy and Innovation of Cleveland Clinic's Center for Functional Medicine, and a 13-time New York Times Bestselling author.

If you are looking for personalized medical support, we highly recommend contacting Dr. Hyman’s UltraWellness Center in Lenox, Massachusetts today.


If you are looking for personalized medical support, we highly recommend contacting Dr. Hyman’s UltraWellness Center in Lenox, Massachusetts today.

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