

The Optispan Podcast with Matt Kaeberlein
Optispan
Optispan is a vision for what health should be.
The typical person gives up 10-20 years of quality life in exchange for disability, frailty, and early death. We call this "the lost decade". Time that should be spent with loved ones doing the activities you enjoy are instead spent suffering from multiple diseases and taking a cabinet full of medications that probably do as much harm as good.
We believe that the current practice of medicine is disease care, not health care. We believe that everyone can get closer to their own optimal healthspan.
The typical person gives up 10-20 years of quality life in exchange for disability, frailty, and early death. We call this "the lost decade". Time that should be spent with loved ones doing the activities you enjoy are instead spent suffering from multiple diseases and taking a cabinet full of medications that probably do as much harm as good.
We believe that the current practice of medicine is disease care, not health care. We believe that everyone can get closer to their own optimal healthspan.
Episodes
Mentioned books

10 snips
Nov 21, 2024 • 38min
I Took 4 Different Biological Age Tests & Compared the Results... | 82
Matt dives into the intriguing world of biological age testing by comparing results from different epigenetic kits. He explores the differences between biological and chronological age, revealing that the tests often provide inconsistent results. With skepticism at the forefront, he questions the accuracy and reliability of these popular kits. Marketing strategies of the companies are dissected, highlighting potential conflicts of interest. Ultimately, he offers a critical perspective on the true value of biological age testing in understanding health.

Nov 19, 2024 • 47min
Dr Seager: Rethinking Health for Longevity | 81
Subscribe to our channel: https://www.youtube.com/@optispan
In this episode, Matt sits down with Thomas Seager, an associate professor at Arizona State University (ASU), to explore the challenges and future directions of healthcare. Drawing from his background in environmental engineering and public health, Thomas discusses the pressing health issues affecting longevity in Americans and a potential shift from a reactive healthcare model to one that emphasizes proactive health management. Together, Matt and Thomas examine the complexities of early disease detection, the promise and limitations of AI in analyzing biomarkers, and the difficulties of separating reliable information from misinformation in today’s digital landscape. Thomas shares his personal experiences with biomarkers and resilience practices, such as cold exposure therapy, while he and Matt discuss the biases in medical research and differing approaches to health.
Thomas is an Associate Professor at ASU in the School of Sustainable Engineering and the Built Environment. His research focuses on sustainable engineering and resilience, addressing topics such as infrastructure resilience, sustainable energy systems, and environmental ethics. He is also the co-founder of Morozko Forge, a company that promotes cold immersion therapy as a means of supporting metabolic resilience.
0:00 Introduction
2:34 Environmental engineering and public health
6:29 Major health crises affecting longevity
10:30 Public’s evolving views on modern healthcare
11:45 “Repair Shop” mentality in medicine
12:59 Two key questions: Advancing proactive medicine and filtering out misinformation
16:00 Understanding biomarkers
18:35 Weighing the risks and rewards of early detection
25:10 Japan’s 1991 Cold Stimulation Study
31:10 Bias and skepticism in medical research—different perspectives
39:12 The positivist approach to hypothesis-driven work
Producers: Tara Mei, Nicholas Arapis
Video Editor: Jacob Keliikoa
DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.
More places to find us:
Twitter: https://twitter.com/optispanpodcast
Twitter: https://twitter.com/optispan
Twitter: https://twitter.com/mkaeberlein
Linkedin: https://www.linkedin.com/company/optispan
Instagram: https://www.instagram.com/optispanpodcast/
TikTok: https://www.tiktok.com/@optispan
https://www.optispan.life/

Nov 14, 2024 • 49min
Death, Grief, & Purpose from a Longevity Science Perspective | 80
Subscribe to our channel: https://www.youtube.com/@optispan
Grief: one of the most profound emotions humanity shares; a universal experience that transcends time, culture, and place; a phenomenon as ancient as human existence. Grief is as intrinsic to the human experience as joy or hope, and no one escapes it—to grieve is to be human.
In this episode, Matt and Nick discuss their recent personal experiences with grief and loss. Matt lost his German Shepherd Dobby to degenerative myelopathy, while Nick's father succumbed to health issues precipitated by heavy alcohol use. Together they explore how grief affects mental and physical health, including how it affects the four Pillars of Healthspan—Eat, Sleep, Move, and Connect—as well as the hallmarks of aging. They also discuss the tricky emotions that can accompany grief, the different ways people react to change, and the unanticipated positives of negative experiences.
Producers: Tara Mei, Nicholas Arapis
Video Editor: Jacob Keliikoa
DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.
More places to find us:
Twitter: https://twitter.com/optispanpodcast
Twitter: https://twitter.com/optispan
Twitter: https://twitter.com/mkaeberlein
Linkedin: https://www.linkedin.com/company/optispan
Instagram: https://www.instagram.com/optispanpodcast/
TikTok: https://www.tiktok.com/@optispan
https://www.optispan.life/
Hi, I'm Matt Kaeberlein. I spent the first few decades of my career doing scientific research into the biology of aging, trying to understand the finer details of how humans age in order to facilitate translational interventions that promote healthspan and improve quality of life. Now I want to take some of that knowledge out of the lab and into the hands of people who can really use it.
On this podcast I talk about all things aging and healthspan, from supplements and nutrition to the latest discoveries in longevity research. My goal is to lift the veil on the geroscience and longevity world and help you apply what we know to your own personal health trajectory. I care about quality science and will always be honest about what I don't know. I hope you'll find these episodes helpful!

25 snips
Nov 7, 2024 • 35min
Nutrition Myths, Gut Fixes, Natural Health Tips from a Doctor of Naturopathy | 79
In this engaging discussion, naturopathic doctor Kim Celmer sheds light on her unique approach to patient care. She clarifies the distinctions between food allergies and sensitivities, pointing out their implications for gut health. Kim also delves into remedies for common digestive issues like heartburn, emphasizing the risks of overusing antacids. Additionally, she shares insights on nutritional deficiencies, particularly vitamin D and iron, and how they affect overall health. This conversation is a treasure trove of natural health tips!

8 snips
Nov 5, 2024 • 25min
We are Keeping People Sick Longer - We Need Medicine 4.0 | 78
The discussion dives into the evolution of healthcare, highlighting how Medicine 2.0 focuses on reactive care yet overlooks healthspan. It contrasts this with the vision for Medicine 4.0, which promotes proactive, personalized health strategies. The podcast urges a shift in focus from merely living longer to enhancing vitality and quality of life. Additionally, Matt hints at the future with Medicine 5.0, promising innovation through geroscience and AI to tackle the biology of aging and improve health outcomes.

Oct 31, 2024 • 35min
The Probability of Us Living to Be Much Older? | 77
Subscribe to our channel: https://www.youtube.com/@optispan
How much longer might humans live?
This question has fascinated scientists, philosophers, and dreamers for centuries. The average human lifespan has already increased dramatically over the past hundred years thanks to advances in medicine, public health, and technology, and the prospect of radically extending human life remains one of humanity’s most compelling frontiers.
A recent paper published in the scientific journal Nature Aging argues that radical life extension is unlikely to happen in the 21st century. The paper has sparked fascinating conversation in the longevity industry around topics such as realistic deliverables for the field, the predictive value of past technological trajectories, the reasons behind lifespan decreases in the western world, incremental versus bold research goals, and where we should go from here. Matt and Nick discuss the paper and provide their own take on the prospect of radical life extension and what we can realistically expect to see in the coming decades.
Producers: Tara Mei, Nicholas Arapis
Video Editor: Jacob Keliikoa
DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.
More places to find us:
Twitter: https://twitter.com/optispanpodcast
Twitter: https://twitter.com/optispan
Twitter: https://twitter.com/mkaeberlein
Linkedin: https://www.linkedin.com/company/optispan
Instagram: https://www.instagram.com/optispanpodcast/
TikTok: https://www.tiktok.com/@optispan
https://www.optispan.life/
Hi, I'm Matt Kaeberlein. I spent the first few decades of my career doing scientific research into the biology of aging, trying to understand the finer details of how humans age in order to facilitate translational interventions that promote healthspan and improve quality of life. Now I want to take some of that knowledge out of the lab and into the hands of people who can really use it.
On this podcast I talk about all things aging and healthspan, from supplements and nutrition to the latest discoveries in longevity research. My goal is to lift the veil on the geroscience and longevity world and help you apply what we know to your own personal health trajectory. I care about quality science and will always be honest about what I don't know. I hope you'll find these episodes helpful!

Oct 30, 2024 • 46min
Longevity Scientist Answers Burning Questions About Health Trends | 76
Subscribe to our channel: https://www.youtube.com/@optispan
Here's another Ask Matt Anything episode, with questions from Nick for Matt about topics ranging from the nitty-gritty of bloodwork and workout schedules to bigger-picture questions about upper limits to human lifespan, issues with the US healthcare system, and incentives for food companies to prioritize healthy options.
Producers: Tara Mei, Nicholas Arapis
Video Editor: Jacob Keliikoa
DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.
More places to find us:
Twitter: https://twitter.com/optispanpodcast
Twitter: https://twitter.com/optispan
Twitter: https://twitter.com/mkaeberlein
Linkedin: https://www.linkedin.com/company/optispan
https://www.optispan.life/
Hi, I'm Matt Kaeberlein. I spent the first few decades of my career doing scientific research into the biology of aging, trying to understand the finer details of how humans age in order to facilitate translational interventions that promote healthspan and improve quality of life. Now I want to take some of that knowledge out of the lab and into the hands of people who can really use it.
On this podcast I talk about all things aging and healthspan, from supplements and nutrition to the latest discoveries in longevity research. My goal is to lift the veil on the geroscience and longevity world and help you apply what we know to your own personal health trajectory. I care about quality science and will always be honest about what I don't know. I hope you'll find these episodes helpful!

8 snips
Oct 24, 2024 • 1h 3min
Brain Repair: The Ketamine Combo Treatment for Depression and Chronic Pain | 75
In this engaging discussion, board-certified psychiatrist Jon Berner delves into the transformative potential of ketamine and rapamycin in treating severe depression and chronic pain. He explains how these treatments impact microglia, facilitating a shift from inflammation to repair. Listeners will find intriguing insights on case studies, regulatory reforms, and the complexity of mast cell disorders. Jon also sheds light on the therapeutic possibilities for addiction and the importance of innovative, individualized approaches in mental health care.

13 snips
Oct 22, 2024 • 31min
GLP-1 Agonists Could Delay Aging? Scientist Weighs-In | 74
Discover the potential of GLP-1 agonists beyond mere weight loss, as they may play a role in delaying biological aging. Delve into the complex relationship between health improvements and aging processes. Explore how these medications could extend lifespan and healthspan, while examining the risks associated with caloric restriction. Learn about the importance of lifestyle changes alongside GLP-1 agonists, including nutrition and resistance training, to maximize their benefits and ensure better metabolic health.

Oct 17, 2024 • 37min
Anti-Aging Enthusiasts are Taking this Pill to Extend Their Lives? | 73
Subscribe to our channel: https://www.youtube.com/@optispan
Check out the New York Times article: https://www.nytimes.com/2024/09/24/well/live/rapamycin-aging-longevity-benefits-risks.html
Related episodes:
“Zombie” Senescent cells may play HUGE role in LIVING LONGER, Here's How: https://www.youtube.com/watch?v=-H6cDIl6pgo
NEW PEARL Trial Results: Your Questions Answered on Aging with Rapamycin for Longevity: https://www.youtube.com/watch?v=JUAXqSSnXzo
Matt and Nick discuss a recent New York Times article about rapamycin and its potential as a life-extending and/or anti-aging drug (the article quotes Matt). Matt answers various questions from Nick related to the article about topics including whether one should "feel something" when taking rapamycin, precautions to take when using the drug off-label, and what we know about rapamycin and fertility, cholesterol levels, and neurodegenerative disease. Matt also discusses likely reasons behind the mixed results observed thus far in human clinical trials of rapamycin, and emphasizes the need for well-powered, randomized clinical trials to better profile and understand the true efficacy of rapamycin in humans.
Producers: Tara Mei, Nicholas Arapis
Video Editor: Jacob Keliikoa
DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.
More places to find us:
Twitter: https://twitter.com/optispanpodcast
Twitter: https://twitter.com/optispan
Twitter: https://twitter.com/mkaeberlein
Linkedin: https://www.linkedin.com/company/optispan
https://www.optispan.life/
Hi, I'm Matt Kaeberlein. I spent the first few decades of my career doing scientific research into the biology of aging, trying to understand the finer details of how humans age in order to facilitate translational interventions that promote healthspan and improve quality of life. Now I want to take some of that knowledge out of the lab and into the hands of people who can really use it.
On this podcast I talk about all things aging and healthspan, from supplements and nutrition to the latest discoveries in longevity research. My goal is to lift the veil on the geroscience and longevity world and help you apply what we know to your own personal health trajectory. I care about quality science and will always be honest about what I don't know. I hope you'll find these episodes helpful!