Episodes
189
Dec. 11, 2025
Episode 189: NASA’s Flawed Plan to Return to the Moon – with Mike Griffin & Lisa Porter
Today’s episode of STEM-Talk features a timely and wide-ranging discussion with Drs. Michael Griffin and Lisa Porter about NASA’s plans to return humans to the Moon, the history of lunar missions, and how China’s advances in space technology pose a serious threat to U.S. national security. IHMC founder and CEO Emeritus Ken Ford’s interview with Griffin and Porter came 10 days before Griffin appeared before the U.S. House Committee on Science, Space and Technology to give testimony on China’s ad...
188
Nov. 4, 2025
Episode 188: Marina Walther-Antonio discusses the microbiome’s role in women’s health and cancer
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...
187
Oct. 2, 2025
Episode 187: Dawn Kernagis talks about creating permanent subsea human habitats
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 researc...
186
Sept. 4, 2025
Episode 186: Mari Dezawa discusses her discovery of MUSE cells and the role of stem cells in regenerative medicine
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 ha...
185
July 31, 2025
Episode 185: Andrew Koutnik discusses metabolic health, athletic performance and growing up with type-1 diabetes
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 o...
184
July 10, 2025
Episode 184: Ken and Dawn answer listener questions on AI, grip strength, ketamine, protein, digital twins, and more!
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 sayi...
182
June 2, 2025
Episode 182: Michael Schmidt on what precision medicine means to human spaceflight
Today we have 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. Michael is also a professor of aerospace medicine at the University of Central Florida College of Medicine, one of the few programs in the U.S. that offers a medical residency in aerospace medicine. Michael is known for his work pioneering the field of precision medicine. He uses mo...
181
May 13, 2025
Episode 181: Ken Forbus talks about AI and his development of the Structure Mapping Engine
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 ...
180
April 9, 2025
Episode 180: Pascal Lee on NASA’s ambitions to send humans to the Moon and Mars
Today we have planetary scientist Dr. Pascal Lee and STEM-Talk host Dr. Ken Ford in a wide-ranging conversation about NASA’s ambitions to return humans to the Moon as a stepping stone to sending astronauts to Mars. Pascal is making his third appearance on STEM-Talk. Much of his research focuses on asteroids, impact craters, and the future human exploration of Mars. Pascal and Ken have a lively discussion about the growing momentum for space exploration. Pascal is a researcher at the SETI Insti...
179
March 5, 2025
Episode 179: JP Errico explains how vagus-nerve stimulation reduces inflammation and chronic diseases
Today we have JP Errico, a scientist and inventor whose work focuses on neuroimmunology and the many ways it impacts cellular metabolism, inflammation, mental health and how we age. He recently joined IHMC as a Senior Research Scientist. JP is particularly known for his research on vagus-nerve stimulation and is the author of the book, The Vagus-Immune Connection: Harness Your Vagus Nerve to Manage Stress, Prevent Immune Dysregulation, and Avoid Chronic Disease. He also is the co-host of the po...
178
Feb. 5, 2025
Episode 178: Karl Herrup discusses the shortcomings of Alzheimer’s research
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 interview...
177
Jan. 16, 2025
Episode 177: Frank Butler talks about revolutionizing combat casualty care
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 Cau...
169
May 22, 2024
Episode 168: Alessio Fasano discusses celiac disease and gluten-related disorders
Dr. Alessio Fasano, who is considered the world’s leading expert in celiac disease and gluten-related disorders, returns for his second appearance on STEM-Talk. Although just 2 million Americans have celiac disease, an estimated 20 million Americans suffer from gluten sensitivity. Alessio is a professor and director of the Mucosal Immunology and Biology Research Center at Massachusetts General Hospital. In addition to celiac disease and gluten-related disorders, Alessio’s research is also focus...
167
April 30, 2024
Episode 167: Nicholas Norwitz discusses a ketogenic diet as metabolic medicine
Today we have Dr. Nicholas Norwitz, 28, a third-year Harvard Medical School student whose research into the applications of a ketogenic diet as metabolic medicine has attracted a significant following. For a number of years during his youth, Nick suffered from a number of debilitating diseases, including osteoporosis, ulcerative colitis, and inflammatory bowel disease. In today’s interview, we talk to Nick about research that led him to adopt a ketogenic diet that put him back on the road to me...
166
April 11, 2024
Episode 166: Vyvyane Loh on atherosclerotic heart disease
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 tr...
165
March 14, 2024
Episode 165: John Edwards on ketamine treatment for depression and suicide prevention
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 Eff...
164
Feb. 21, 2024
Episode 164: Michael Leon on olfactory stimulation as a buffer for dementia symptoms
What if the path to delaying the onset of dementia symptoms begins at the nose? It is a doorway that the research of Dr. Michael Leon opened with a 2023 study on the power of olfaction enrichment to influence memory function and brain health. The findings drew wide acclaim and interest when his results found that stimulation of our sense of smell with essential oils had a profound impact on memory, cognition, and language recall. Our conversation with Leon on STEM-Talk Episode 164 is available...
163
Jan. 31, 2024
Episode 163: Mark Mattson discusses glutamate, the brain’s most important neurotransmitter
Today we have Dr. Mark Mattson, an adjunct professor of neuroscience at Johns Hopkins School of Medicine who is making his third appearance on STEM-Talk. Today’s interview focuses on Mark’s research into glutamate and comes on the heels of the publication of Mark’s new book, “Sculptor and Destroyer: Tales of Glutamate – The Brain’s Most Important Neurotransmitter.” Today Mark explains how more than 90 percent of the neurons in the brain deploy the little-known molecule glutamate as their neurot...
162
Jan. 10, 2024
Episode 162: Marc Hamilton discusses the soleus push-up and the health hazard of excessive sitting
Today we have Dr. Marc Hamilton, an international expert in muscle physiology. He has published pioneering work on the soleus push-up, a potent physiological method which Marc discovered having the ability to elevate metabolism for hours, even while sitting. As a professor of Health and Human Performance at the University of Houston, Marc’s research focuses on solving problems of metabolism and biochemistry. His lab currently has a number of ongoing investigations, including studies on the bioc...