The Optispan Podcast with Matt Kaeberlein

Cristal Hill, an Assistant Professor of Gerontology at USC, dives into the fascinating world of protein's impact on aging and health. She discusses the significance of fibroblast growth factor 21 (FGF21), a hormone that plays a crucial role in metabolism and food preferences. Cristal explains how protein restriction can enhance longevity and improve metabolic functions. They also explore the therapeutic potential of FGF21 in combating obesity and the importance of personalized dietary strategies for healthier aging.

Subscribe to our channel: https://www.youtube.com/@optispan Check out Mike Israetel's channel: https://www.youtube.com/@RenaissancePeriodization Related episodes: Exercise Scientist Critiques Bryan Johnson's INSANE Anti-Aging Protocol: https://www.youtube.com/watch?v=AAZespwbj6k The Surprising Way Body Size Relates to Lifespan: https://youtu.be/Fjh6WbkZkvw Entrepreneur and competitive bodybuilder Mike Israetel recently released a video discussing Bryan Johnson's anti-aging protocol. Towards the end of the video, he gives us his take on the "big rocks" that account for the bulk of our longevity. In this episode, Matt reacts in real time to his first watch of this end portion of Mike's video. Together with Nick, he goes over Mike's suggestions about diet, drugs, body composition, and supplements and provides some additional context and nuance to each recommendation where he sees fit. 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!

Longevity Scientist reacts to Bryan Johnson's gene therapy video, discussing gene therapy as a longevity intervention, clinical evidence for follistatin, offshore medicine, and regulatory oversight. Topics include inducible promoters in gene editing, challenges in longevity therapy approval, and the quest for immortality.

Subscribe to our channel: https://www.youtube.com/@optispan Check out Prime Health Associates: https://www.primehealthassociates.com/ Matt recently attended the 52nd annual meeting of the American Aging Association in Madison, Wisconsin and met with several people doing fascinating work in or adjacent to the gerosciencefield. One of these was Kevin White, physician at longevity-focused clinic Prime Health Associates in Oklahoma City, Oklahoma. Kevin spent two decades in emergency medicine before obtaining fellowship training in integrative and functional medicine, nutrition, and age management. He complete residency training in emergency medicine and trauma at Washington University in St. Louis, and received his M.D. from the University of Oklahoma College of Medicine. Matt describes him as "one of the few longevity docs who actually comes to the science meetings to learn more about the science of aging." Ultimately, the geroscience field is nothing without the medical professionals who bring new discoveries to bedside. So we really enjoyed sitting down with Kevin and hearing his thoughts on interventions such as stem cell therapy as well as his questions about the geroscience field, which prompted a wide-ranging discussion of rapamycin, the hallmarks of aging, body composition, and more. 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!

Subscribe to our channel: https://www.youtube.com/@optispan Check out the Gurkar lab: http://agresearchlab.com/ In May 2024, Matt delivered a talk at the 2024 Glenn AFAR Grantee Conference in Santa Barbara, California and met with several people doing interesting work in the longevity field. One of these was Aditi Gurkar, an assistant professor in the University of Pittsburgh's Aging Institute, Division of Geriatric Medicine whose lab focuses on the downstream effects of DNA damage on aging. Prior to setting up her lab at the University of Pittsburgh, Aditi conducted research on the impact of DNA damage on aging at Scripps Research. She also completed postdoctoral training at Massachusetts General Hospital/Harvard Medical School and the Broad Institute of MIT and Harvard, where she focused on the tumor suppressor p53 as well as on autophagy regulation. Aditi received a PhD and a B.S. from the Boston University School of Medicine and Florida International University in Miami respectively. Matt and Aditi spend much of this episode chatting about senescent cells: how Aditi developed a focus on cellular senescence and found its relevance to aging, potential therapeutic benefits of senescent cell clearance, and the much-debated question of how to define a senescent cell. They also discuss the importance of "zooming out" from narrow areas of focus in the geroscience field to find new solutions and of breaking your own models on your way to productive new directions in science. 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!

Exploring the impacts of Rapamycin on diseases and biological aging, optimizing drug dosing for efficacy, discussing blood serolimus levels and potential effects on bone health, comparing SGLT2 inhibitors with Rapamycin for longevity intervention, and highlighting the use of Rapamycin for immune system restoration and heart health in aging animals.

Subscribe to our channel: https://www.youtube.com/@optispan Related episodes: The Two New Highest Ranked Compounds For Lifespan Extension According to the ITP: https://youtu.be/b4VaXqeli8c Supplement Industry Secrets: What They Aren't Telling You About NAD+ & NMN: https://youtu.be/OgsfIUfuyqk We read every single comment on our social media and Youtube channels and enjoy hearing your feedback, questions, and comments on our podcast. Our recent episode on the Interventions Testing Program's recent tests on various longevity interventions sparked some interesting debate on X. City of Hope National Medical Center's Alfred E. Mann Family Foundation Chair in Diabetes and Cancer Metabolism Charles Brenner made a remark about the potential negative effects of rapamycin on humans, while Ponce De Leon Health Chief Operating Officer Mike Muldoon plugged the calcium alpha-ketoglutarate supplement Rejuvant (the ITP tests reported no lifespan extension of alpha-ketoglutarate on mice). Matt responded to these comments on X and some interesting back and forth with Charles and Mike ensued. In this episode, Matt and Nick take a magnifying glass to Charles' and Mike's feedback and examine the published data—and some unpublished data—to consider and respond to their claims. They also discuss the allure of phrases such as "scientifically proven" and "clinically proven" in marketing, and the importance of approaching such phrases with a critical mindset and an eye towards study robustness and methodology as well as the researchers' impartiality. 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!

Subscribe to our channel: https://www.youtube.com/@optispan Related episode: The Two New Highest Ranked Compounds For Lifespan Extension According to the ITP: https://youtu.be/b4VaXqeli8c Matt, who ran the Kaeberlein lab at the University of Washington from 2006 to 2023, rounded up several former lab members for a chat at the recent 52nd annual meeting of the American Aging Association (AGE) in Madison, Wisconsin. The group included assistant and tenured professors at various institutions around the United States, startup founders, and prospective PhD students with geroscience research interests that span the microbiome, mitochondrial dysfunction, frailty, metabolism, sex differences in aging, and more. In this episode, Matt and his former lab members pool their collective knowledge to engage in a lively conversation (and sometimes debate) about longevity interventions such as metformin, acarbose, and sauna use. In their discussion, they touch on hot-off-the-press positive results, unpublished data, and planned research from their respective research groups and labs. They also bring up nuances to recent published work, including results from the Interventions Testing Program on various interventions that Matt discussed in a previous podcast episode. 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!

Subscribe to our channel: https://www.youtube.com/@optispan Should you add bananas to your smoothies? No, according to someone on TikTok who posted a viral video suggesting that our smoothies should be banana-free. On the basis of a 2023 scientific journal article, this TikTok user asserted that bananas destroy the beneficial polyphenols found in other fruits and vegetables that might be in your smoothie. As is often the case with science, there's more to this story than the punchline. In this episode, Matt puts a magnifying glass to the 2023 journal article to figure out what the study actually showed, and whether we do, in fact, need to be careful about adding bananas to our smoothies. 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!

Subscribe to our channel: https://www.youtube.com/@optispan Related episodes: These 14 Medications are linked to lower death rates in humans: https://youtu.be/Ju1p_L-2Bq4 Is This The Best Time to Exercise?: https://youtu.be/59SFzLEy6Jg Matt recently attended the 52nd annual meeting of the American Aging Association (AGE) in Madison, Wisconsin and met with several people doing fascinating work in the longevity field. One of these was Berenice Benayoun, an Associate Professor (recently tenured!) of Gerontology, Biological Sciences, Biochemistry, and Molecular Medicine at the University of Southern California Leonard Davis School of Gerontology. Berenice delivered the keynote speech at the 2024 AGE meeting, where she received the 2024 Vincent Cristofalo Rising Star Award in Aging Research. Her research focuses on the influence of genomic regulation mechanisms, environmental stimuli, and factors such as biological sex on vertebrate aging and healthspan. Berenice was named a 2020 Pew Biomedical Scholar and a 2021 Nathan Shock new Investigator, and also received the 2019 Rosalind Franklin Young Investigator Award in Mammalian Genetics, an American Federation of Aging Research Junior Faculty Award, and a Global Consortium for Reproductive Longevity and Equality GCRLE Junior Scholar Award. In this episode, Matt and Berenice chat about the ovaries as a vehicle for understanding aging, the difference between estropause and menopause, and the controversies associated with hormone replacement therapy, and how Berenice made her way into the lab of her dreams. They also discuss the African turquoise killifish, a new vertebrate model organism for longevity research, and address a couple of questions about research we have recently featured on this podcast (how pregnancy affects aging, and sex-specific differences in the effects of estradiol on mouse aging). 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!