Time Traveling Tissue: The New Science of Transplant Aging| Dr. David & Dr. Jeremiah Bearss
What happens when a young heart is transplanted into an older body? And what happens when an older heart is placed into a younger one?
In this episode of the Good Medicine Podcast, Dr. David Bearss and his brother Jeremiah discuss fascinating research using heart transplants to explore how our organs age.
They look at evidence suggesting that when a younger heart is placed into an older biological environment, that heart can begin aging faster. But the opposite may also happen. An older heart placed into a younger environment can show signs of reversing aspects of its biological age.
That raises a much bigger question about aging: How much of an organ's age is determined by the organ itself, and how much is determined by the body surrounding it?
Dave and Jeremiah also discuss why heart transplant recipients and donors aren't necessarily matched by age, and what these natural experiments can teach researchers about the signals that drive aging throughout the body.
If our organs are constantly responding to their environment, changing that environment could eventually change how we think about aging itself.
Topics covered include:
• Heart transplants and biological aging
• Young hearts in older bodies
• Older hearts in younger bodies
• Why donor and recipient ages don't always match
• How the body's environment affects organ function
• What transplant research could teach us about aging
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6 Oct 2026
Living Longer Isn't the Goal. Living Better Is.| Dr. David & Jeremiah Bearss
Living longer sounds great. But what if those additional years are spent dealing with chronic disease, limited mobility, and declining health?
In this episode of the Good Medicine Podcast, Dr. David Bearss and his brother Jeremiah discuss why the conversation around longevity is shifting away from simply extending lifespan and toward something potentially much more valuable: extending healthspan.
Healthspan is the portion of your life spent in good health. Instead of asking how we can add more years at the end of life, Dave and Jeremiah explore whether medicine can delay the onset of chronic disease and compress the period of poor health that many people experience as they get older.
What if the goal isn't living to 100?
What if it's reaching your 80s or 90s while remaining healthy, independent, and able to enjoy your life for as long as possible?
Dave and Jeremiah discuss why slowing the biological processes associated with aging could change not only how long we live, but what those later years actually look like.
Topics covered include:
• Lifespan vs. healthspan• Why living longer isn't necessarily living better• Chronic disease and aging• Compressing the years spent in poor health• Slowing the aging process• Rethinking what successful aging actually means
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29 Sept 2026
Can Having a Purpose Help You Live Longer?| Dr. David & Jeremiah Bearss
Could having a strong sense of purpose actually influence how long you live?
In this episode of the Good Medicine Podcast, Dr. David Bearss and his brother Jeremiah discuss research connecting a strong sense of purpose with longevity and better health.
They explore why having something meaningful to work toward may affect more than just how we feel. Purpose could influence our psychology, our daily decisions, and the healthy behaviors that add up over a lifetime.
Dr. Bearss also discusses growing concerns around the number of people who report feeling that their lives lack meaning and why our psychological well-being may have a greater impact on physical health than we realize.
The conversation raises a bigger question about longevity: Is living a long, healthy life just about what you do, or does having a reason to do it matter too?
Topics covered include:
• The connection between purpose and longevity
• Why meaning matters for our health
• Psychology and physical well-being
• Purpose and healthy behaviors
• Exercise, nutrition, and sleep
• What it means to live a meaningful life
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Who has been a guest on Good Medicine Podcast
Names identified in recent episode analyses. Showing up to five guests.
Dr Jeremiah Bearss
Dr Brian Parker
Hari Vankayalapati
Henry O’Connell
John Lippert
Reach and audience
Public platform figures. Ratings count people who left a rating, not total listeners.
YouTube views
4,773
Score snapshot 15 Sept 2025
Apple Podcasts (US)
5.0 / 5
9 ratings
Spotify
5.0 / 5
10 ratings
Podcast Authority Score: 56 / 100
A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.
Quality
69
Social presence
0
YouTube
74
Engagement
32
Contact Good Medicine Podcast
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