Stem Cells and Longevity: Can We Really Regenerate as We Age?
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What if ageing isn't simply about slowing decline, but finding ways to support the body's ability to repair and regenerate?
In this episode of the Biohackher Podcast, I'm joined by Dr Yi Song to explore the rapidly evolving world of regenerative medicine — from stem cells and exosomes to peptides, red light therapy and some of the ancient Chinese longevity practices now finding their way into modern conversations about healthspan.
With a family history spanning 17 generations of traditional Chinese medicine and her own training in Western pathology, Dr Song brings an unusual perspective to longevity. She believes the future of medicine lies in bringing these two worlds together: using modern science and technology alongside a more holistic, preventative approach to health.
We unpack what stem cells actually are, how different types of stem cells behave, and why mesenchymal stem cells have attracted so much attention in regenerative medicine. We also tackle the harder questions: How strong is the evidence? Which applications have regulatory approval? How do you distinguish a credible clinic from clever marketing? And are claims that stem cell therapies can slow biological ageing getting ahead of the science?
Dr Song also explains the difference between stem cells and exosomes, where peptides may fit into regenerative medicine, and why she believes there is no single "magic bullet" for longevity. Instead, she argues that sleep, nutrition, movement and other foundational health practices still matter — regardless of how sophisticated longevity medicine becomes.
We also explore the fascinating intersection between ancient Chinese medicine and modern regenerative therapies, including the idea that supporting the body's capacity for repair is far from a new concept.
In this episode, we discuss:
What stem cells are and the different types being used and studied
Mesenchymal stem cells and why they're attracting attention
Stem cells versus exosomes: what's the difference?
What the current evidence can — and can't — tell us about stem cells and ageing
Osteoarthritis and other areas being investigated for stem cell therapy
The regulatory grey areas surrounding regenerative medicine
How to identify red flags when researching stem cell clinics
Why more expensive treatment doesn't necessarily mean better treatment
Peptides, NAD and other approaches to regenerative health
Red light therapy, mitochondria and cellular energy
Why personalised longevity strategies matter
Ancient Chinese longevity practices and their relationship with modern regenerative medicine
Why the fundamentals of sleep, nutrition and movement remain central to healthspan
This is a fascinating look at one of the most talked-about areas of longevity medicine — including its potential, its limitations and the questions we still need science to answer.
Disclaimer: This episode is for educational and informational purposes only and does not constitute medical advice. Some regenerative therapies discussed in this episode are experimental, unapproved or not approved for the uses discussed, depending on jurisdiction. Always seek advice from an appropriately qualified healthcare professional and check the regulatory status of any treatment before proceeding.
ABOUT DR YI SONG
Dr. Yi Song is a 17th-generation practitioner of Chinese medicine with advanced training in pathology from Brown University. She is the founder of Stem Cell Therapy Experts.
Biohackher – Live Well Longer is your practical guide to adding life to your years. Drawing on the latest science in women's health, longevity and biohacking, this book cuts through the hype to reveal what actually works to support your brain, body, beauty and balance as you age. From sleep, hormones and gut health to strength, stress, nutrition and cutting-edge longevity tools, you'll discover evidence-based strategies to help you feel stronger, sharper and more vibrant at every stage of life.
Join us at the Live Well Longer Retreat from 16–20 October 2026 at the award-winning Eden Retreat in the breathtaking Gold Coast hinterland. Over five immersive days, you'll discover evidence-based biohacking and longevity strategies to optimise your health through expert-led masterclasses, movement, nourishing wholefoods, restorative wellness experiences and practical tools you can continue using long after you return home. Hosted by Australia's leading biohackers, Azra Alagic and Camilla Thompson, this retreat is designed to help you reset, recharge and live well for longer. Learn more and book your place at eden.com.au/live-well-longer
