Healthspan vs. Lifespan: What It Takes to Stay Healthy Longer with Dr. Jamie Justice | MGC Ep. 126
The Mind-Gut Conversation PodcastShow Notes
Over the past century, average lifespan in Western countries has grown by about 30 years. The years we spend in good health have not kept pace.
In this episode of The Mind–Gut Conversation, Dr. Mayer is joined by Dr. Jamie Justice, Executive Vice President of the Health Domain at the XPRIZE Foundation and Executive Director of XPRIZE Healthspan, a $101 million, seven-year global competition to find therapies that restore muscle, cognitive, and immune function in older adults.
They discuss the roughly 12-year gap between lifespan and healthspan, why research in worms, flies, mice, and non-human primates suggests aging may be modifiable, and how the XPRIZE competition model rewards teams for demonstrated results rather than proposals. Dr. Justice explains why she does not consider aging a disease, why lifestyle interventions and new therapies should be tested side by side, and what it would take to separate evidence from hype in the consumer longevity market.
The conversation closes with the bigger questions: how long humans could realistically live, and how society needs to rethink purpose, work, and technology as more people live into their 80s, 90s, and beyond.
Topics discussed include: • Why healthspan has not kept up with lifespan • How the XPRIZE Healthspan competition works • Why aging is a risk factor, not a disease • Lifestyle interventions vs. new longevity therapies • Evidence standards in the consumer longevity market • The limits of lifespan extension and what it means for society
This is a practical, science-driven discussion for anyone interested in longevity, healthy aging, and the future of aging research.
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This episode is sponsored by Mayer Nutrition, co-founded by Dr. Emeran Mayer. Polyphenols are the plant compounds found in berries, cocoa, green tea and olive oil, and most of their value comes from what happens in your gut: your microbes convert them into compounds your body can absorb and use.
Mayer Nutrition makes food and nutrition products built on Dr. Mayer's research into the brain-gut-microbiome system.
Save 10% with code MINDGUT. Learn more at mayernutrition.com.
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Chapters: 0:00 - Introduction 3:37 - Why Has Interest in Longevity Surged? 7:02 - Healthspan vs. Lifespan 14:35 - Inside the XPRIZE Healthspan Competition 24:26 - Lifestyle Interventions vs. New Therapies 37:49 - Is Aging a Disease? 48:30 - How Long Could Humans Live? 56:01 - Closing Remarks
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