PODCAST

STEM-Talk

Dawn Kernagis and Ken Ford

The most interesting people in the world of science and technology

health & fitness nutrition

All Episodes

1:05:04

Episode 190: Judith Curry and the Consequences of...

STEM-Talk ·

2026/01/07

Dr. Judith Curry, a climatologist known for her criticism of alarmist, doomsday rhetoric about climate change, returns to STEM-Talk for her second appearance.Judy most recently was one of five researchers commissioned by the U.S. Department of Energy to draft a Climate Assessment Report summarizing the current state of climate science with a focus on how it relates to the United States. In this interview, Judy summarizes the climate report’s key points, including the finding that that

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1:19:16

Episode 188: Marina Walther-Antonio discusses the...

STEM-Talk ·

2025/11/04

Today we have Dr. Marina Walther-Antonio, a Mayo Clinic researcher who investigates the role of the microbiome in cancer and reproductive health, particularly endometrial and ovarian cancers. According to the World Cancer Research Fund International, endometrial and ovarian cancers are among the top 10 most prevalent cancers in women worldwide, and there are still no standard screenings for early detection.Marina is an assistant professor in the Department of Surgery and the Mayo Clinic Center for

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1:13:18

Episode 187: Dawn Kernagis talks about creating...

STEM-Talk ·

2025/10/02

Today Ken interviews his co-host Dr. Dawn Kernagis about her new position as the Director of Scientific Research for DEEP, a UK startup that is pioneering a new era of ocean exploration.For listeners unfamiliar with Dawn’s background, she is a NASA-trained NEEMO Aquanaut, a Fellow of the Explorer's Club Fellow and has been inducted into the Women Divers Hall of Fame. In addition to co-hosting STEM-Talk for the past nine years, Dawn is also a Visiting Research Scientist at IHMC. Dawn’s research

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47:19

Episode 186: Mari Dezawa discusses her discovery of...

STEM-Talk ·

2025/09/04

Today we have Dr. Mari Dezawa, one of the world’s leaders in stem-cell research and regenerative medicine. Mari is a pioneer in this emerging field and is known worldwide for her discovery of MUSE cells, a unique type of stem cell with exciting clinical potential. MUSE is short for Multilineage-Differentiating Stress-Enduring Cells.The discovery of the MUSE cell in humans has many biological and medical implications, and the human body may have a greater regenerative potential than we might have

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1:31:37

Episode 185: Andrew Koutnik discusses metabolic...

STEM-Talk ·

2025/07/31

Today we have our good friend and colleague Dr. Andrew Koutnik on the show. Andrew is a research scientist who studies the influence of nutrition and metabolism on health, disease and performance. He specializes in Type 1 diabetes and works with a wide range of people to improve their metabolic health and athletic performance.Andrew is a visiting research scientist at IHMC and has worked with Harvard, Johns Hopkins, NASA, and the Department of Defense to develop evidence-based strategies for

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44:16

Episode 184: Ken and Dawn answer listener questions...

STEM-Talk ·

2025/07/10

It’s time for another episode of Ask Me Anything. Dawn and Ken answer listener questions that range from generative AI to whether grip strength is a biomarker for longevity and the potential of ketamine as a treatment for depression. Dawn also gives a brief overview of work she is doing with the deep-sea technology company Deep. As a special treat at the end of today’s episode, Dawn plays a recording of the commencement speech that Ken recently gave at the University of West Florida. As the saying

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1:34:46

Episode 183: Michael Schmidt on the challenges of...

STEM-Talk ·

2025/06/24

Today we have the second installment of our interview with Dr. Michael A. Schmidt, the founder, CEO, and Chief Scientific Officer of Sovaris Aerospace, a company focused on assessments and solutions applied to humans in space and extreme environments on Earth.In today’s interview, we talk to Michael about NASA’s plans to send humans to Mars and build permanent colonies on the Moon and Mars. We also talk to Michael about his recent book, “Building a Space-Faring Civilization,” which addresses the

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1:25:42

Episode 181: Ken Forbus talks about AI and his...

STEM-Talk ·

2025/05/13

Our guest today is Dr. Ken Forbus, the Walter P. Murphy Professor of Computer Science and a Professor of Education at Northwestern University.Joining Dr. Ken Ford to co-host today’s interview is Dr. James Allen, who was IHMC’s associate director until he retired a few years ago. James is a founding fellow of the American Association for Artificial Intelligence and a perfect fit for today’s discussion with Dr. Forbus, who, like James, is an AI pioneer. Back in 2022, James was named a fellow by the

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1:30:11

Episode 178: Karl Herrup discusses the shortcomings...

STEM-Talk ·

2025/02/05

Today we have Dr. Karl Herrup, a neurobiologist known for his investigations into the roles that DNA damage and noncoding genetic variants have in Alzheimer’s disease.Joining Ken today to interview Karl is Dr. Tommy Wood, a visiting scientist here at IHMC. Tommy also is an associate professor of pediatrics and neuroscience at the University of Washington, where he focuses on brain health across lifespan. He has been our guest several times on STEM-Talk and we will have links to those interviews

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1:33:17

Episode 177: Frank Butler talks about revolutionizing...

STEM-Talk ·

2025/01/16

Today we have Dr. Frank Butler, a retired Navy Undersea Medical Officer and an ophthalmologist who served as a Navy SEAL platoon commander prior to attending medical school.Just a few weeks after our interview, President Joe Biden awarded Frank a Presidential Citizens Medal during a White House ceremony. The medal is one of the highest honors a civilian can receive and recognized Frank’s many contributions to civilian and military trauma care. Frank is credited with founding Tactical Combat

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1:20:57

Episode 176: JoAnn Manson discusses Women’s Health...

STEM-Talk ·

2024/12/20

Today our guest is Dr. JoAnn Manson, an endocrinologist, epidemiologist, and Principal Investigator of several research studies, including the landmark Women’s Health Initiative. She is a highly cited researcher and was one of the physicians featured in the National Library of Medicine’s exhibition, History of American Women Physicians. Her primary research interests include clinical prevention trials of nutritional and lifestyle factors related to heart disease, diabetes, and cancer and the role of

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1:39:17

Episode 175: Hans Van Dongen discusses how fatigue...

STEM-Talk ·

2024/11/27

Today we have Dr. Hans Van Dongen, director of the Sleep and Performance Research Center at Washington State University in Spokane. Dr. Kevin Gluck, a senior research scientist at IHMC, joins Dr. Ken Ford to interview Hans about his studies on inter-individual differences in vulnerability to fatigue as well as the cumulative cognitive deficits that follow chronic sleep restriction.Hans is known for his mathematical modeling of fatigue’s effects on performance. At the Sleep and Performance Research

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1:09:00

Episode 174: Rudy Tanzi talks about genetics, aging...

STEM-Talk ·

2024/10/25

Today we have Dr. Rudolph E. Tanzi, who is perhaps best known for co-discovering all three familial early-onset Alzheimer's disease genes. In addition, Rudy’s lab was the first to use human stem cells to create three-dimensional human brain organoids and three-dimensional neural-glial culture models of Alzheimer’s disease, which became known as “Alzheimer’s-in-a-Dish.” These models were the first to recapitulate all three of the key pathological hallmarks of Alzheimer’s disease and have made drug

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1:20:40

Episode 173: Anurag Singh on urolithin-A’s ability to...

STEM-Talk ·

2024/09/23

Our guest today is Dr. Anurag Singh, the chief medical officer at Timeline Nutrition, a Swiss life-science company that focuses on ways to improve mitochondrial and cellular health. Anurag is particularly known for his research into the gut metabolite, urolithin-A, which has been shown to improve muscle strength, protect immune systems and optimize mitochondrial efficiency.Anurag is an MD in internal medicine with a Ph.D. in immunology. He has led more than 50 randomized clinical trials, many of

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1:34:18

Episode 172: Kevin Tracey on neuro-immunology and the...

STEM-Talk ·

2024/09/05

Few people know as much about inflammation and neuroscience as Dr. Kevin Tracey does.In this episode of STEM-Talk, we learn much from Tracey, who was the first to identify the inflammatory reflex, a physiological mechanism that regulates the body’s immune response to injury and invasion. He is a neurosurgeon, a pioneer in bioelectrical medicine and president and CEO of the Feinstein Institutes for Medical Research in Manhasset, N.Y. The conversation in this episode covers a career spent working

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48:40

Episode 171: Ken and Dawn on AI, Alzheimer’s, global...

STEM-Talk ·

2024/08/08

In today’s Ask Me Anything episode, Ken and Dawn answer a wide range of questions that cover:A recent FDA approval of a neural implant device for people with degenerative neuromuscular disease or spinal-cord injuries. Global security in the age of AI. A study that looked at ways to optimize glymphatic clearance for people with acute or chronic sleep deprivation. Why more gyms don’t offer blood-flow restriction classes for their clients. Developments in the realm of Generative AI. The

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54:59

Episode 166: Vyvyane Loh and Ken Ford discuss...

STEM-Talk ·

2024/04/11

Dr. Vyvyane Loh returns to STEM-Talk for her second appearance to talk about atherosclerotic heart disease. Also known as ASCVD, the disease has been reported to affect 26 million people in the U.S., and annually leads two million hospitalizations and more than 400,000 deaths.Vyvyane is a board-certified physician in obesity and internal medicine. In episode 142 of STEM-Talk, we talked to Vyvyane about her Boston-based preventative-care practice that specializes in weight management and the

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1:04:26

Episode 165: John Edwards on ketamine treatment for...

STEM-Talk ·

2024/03/14

Today we have Dr. Johnathan Edwards, an anesthesiologist and medical practitioner who specializes in human health and optimization. He is perhaps best known for treating mental health conditions with ketamine, a dissociative anesthetic that is used for general anesthesia, pain relief, depression and epilepsy. John also uses ketamine to help adolescents overcome depression and suicidal ideation.In today’s interview, we talk about his new book, “The Revolutionary Ketamine: The Safe Drug That

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59:26

Episode 64: Valter Longo talks about the...

STEM-Talk ·

2018/05/22

Today’s episode features Dr. Valter Longo, director of the Longevity Institute at the University of Southern California. Valter is best known for his research on stem cells and aging as well as his fasting-mimicking diet. Often referred to as FMD, the diet is intended to avoid the downsides of fasting while reaping the health benefits of a calorie-restrictive diet. Over a 25-year career, Valter has published numerous papers about the ways specific diets can activate stem cells and promote

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1:02:47

Episode 63: Keith Baar talks about collagen...

STEM-Talk ·

2018/05/08

Dr. Keith Baar joins Ken and Dawn today for the second of his two-part interview for STEM-Talk. Keith is a renowned scientist in the emerging field of molecular exercise physiology who has made fundamental discoveries on how muscles grow bigger, stronger, and more fatigue resistant. He is the head of the Functional Molecular Biology Laboratory in the Department of Neurobiology, Physiology, and Behavior at the University of California, Davis. In his lab, he leads a team of researchers attempting to

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