
Mind & Matter
Whether food, drugs or ideas, what you consume influences who you become. Learn directly from the best scientists & thinkers alive today about how your mind-body reacts to what you feed it.The weekly M&M podcast features conversations with the most interesting scientists, thinkers, and technology entrepreneurs alive today.Not medical advice.At M&M, we are interested in trying to figure out how things work, not affirming our existing beliefs. We prefer consulting primary rather than secondary sources and independent rather than institutional voices. If we encounter uncomfortable truths or the evidence suggests unfashionable ideas may be valid, so be it.As the host, my aim is to help you better understand how the body & mind work by curating & synthesizing information in a way that yields science-based insights that you can choose to use or disregard in your own life. Taking ownership of your health starts with taking ownership of your information diet.I am motivated to connect the dots and distill general principles from what I learn, preferring to ask questions and play devil’s advocate to debating or incessantly pushing my own viewpoint.My beliefs:Taking ownership of your health starts with taking ownership of your information diet.All knowledge is provisional and we must work hard to prevent ourselves from becoming attached to our favorite ideas & preferred conclusions.Wisdom comes from an iterative, trial-and-error process of learning and unlearning. Letting go of pre-conceived notions can be painful, but pain is information.Sometimes modern discoveries teach us we must unlearn received wisdom. Other times, modern information overload & historical chauvinism cause us to forget ancient wisdom which stills applies. The framework for learning that I embody is inspired by three Ancient Greek maxims inscribed in the Temple of Apollo at Delphi:“Γνῶθι σεαυτόν” (Know thyself)“Μηδὲν ἄγαν” (Nothing in excess)“Ἐγγύα πάρα δ Ἄτα” (Certainty brings insanity)
Latest episodes

Dec 20, 2023 • 1h 37min
Infant Microbiome & Breast Milk, Oral Microbiome & Cavities, Gut Health, Fiber, Probiotics, Diet, Sex Hormones, Soy Foods & Estrogens | Carolina Tropini | 133
Send us a textDr. Carolina Tropini is an assistant professor of Microbiology & Immunology at the University of British Columbia, where her lab studies the microbiome in health & disease. Topics covered: infant & vaginal microbiome, breast milk nutrients & C-sections vs. natural births; oral microbiome & cavities; gut microbiome & irritable bowel disease (IBD); fiber, short-chain fatty acids & probiotics; how gut bacteria influence sex hormones (estrogen, testosterone) in the body; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Dec 5, 2023 • 1h 13min
Obesity Epidemic, Metabolism, Saturated Fat vs. PUFAs, Energy Expenditure, Weight Gain & Feeding Behavior | John Speakman | 132
Send us a textDr. John Speakman is a biologist whose research focuses on energy balance, energy expenditure, genetic and environmental drivers of obesity and the energetic contribution to aging. They discuss: the history of the obesity epidemic in the US vs. China; changes in patterns of physical activity, diet, and energy expenditure in humans over time; how saturated fats vs. PUFAs affect basal metabolism; the relative contributions of fats, carbs, and protein to fat & weight gain; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Dec 4, 2023 • 1h 55min
Dietary Fat, Cholesterol, Cardiovascular Health & Disease, Carbohydrates, Dietary Guidelines, Food Industry & Diet Research | Ronald Krauss | 131
Send us a textNick talks to Dr. Ronald Krauss, a physician and researcher at UCSF who studies the relationship between diet & cardiometabolic health. They discuss: saturated vs. unsaturated fats; carbohydrates & fat synthesis; "good" vs. "bad" cholesterol; official US dietary guidelines and how they're established; funding of research by the food industry; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Nov 5, 2023 • 1h 13min
Cognitive Neuroscience, Cognitive Flexibility & Control, Attention, Working Memory, Multitasking & Behavior | Tobias Egner | 130
Send us a textDr. Tobias Egner is a Professor of Psychology & Neuroscience at Duke University, where his lab studies cognition, working memory, and cognitive control & flexibility. They discuss: what cognition is and how it's studied experimentally; working memory & attention; cognitive flexibility, cognitive control & multitasking; memory, perception, and predictive coding; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Oct 22, 2023 • 1h 48min
Biological Sex, Sexual Selection, Sex Behavior, Mating Strategies, Sexual Orientation, Monogamy & Polygyny | David Puts | 129
Send us a textDr. David Puts is a biological anthropologist at the Penn State University. His research focuses on the evolution and development of human sexuality and sex differences. They discuss: the biological basis of sex; gametes, sex chromosomes & sex hormones; the development of sexual orientation; the evolution of sexual dimorphism & behavior in primates; monogamy & polygyny; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Oct 16, 2023 • 1h 13min
Peripheral Nervous System in Health & Disease, Gut Health & Enteric Nervous System, Exercise & Neuroplasticity | Moses Chao | 128
Send us a textDr. Moses Chao is a professor at the New York University School of Medicine. His lab studies how the environment, neuronal activity, inflammation, injury and disease affect the nervous system. They discuss topics related to his new book, "Peripheral: How Your Nervous System Predicts and Protects Against Disease." Topics include: how the peripheral nervous system differs from the central nervous system; the enteric nervous system & gut health; pain sensation; exercise & neuroplasticity; neurodegenerative disease; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Oct 11, 2023 • 59min
Psychedelics, Microdosing Psilocybin, Stress Resilience, Anxiety & Obsessive Compulsive Disorder | Mikael Palner | 127
Send us a textMikael Palner, PhD is a neuroscientist at the University of Souther Denmark. His lab studies the neuronal circuits involved in obsessive compulsive disorder and anxiety . They investigate the effects of serotonergic psychedelic and non-psychedelic drugs that increase neuronal plasticity. They discuss: psychedelics & the brain; the neuroscience of stress, anxiety & compulsive behavior; microdosing psilocybin; and more.More psychedelic science content.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Aug 28, 2023 • 2h 4min
Evolution of Human Behavior, Anatomy & Diet, Homo naledi & the Cave of Bones | John Hawks | 126
Send us a textDr. John Hawks is a paleoanthropologist and professor of anthropology at the University of Wisconsin-Madison. They discuss: the evolution of human behavior, diet, anatomy, and culture; Neanderthals, Denisovans, Homo erectus, and other species; the latest discoveries related to Homo naledi, which was the subject of the Netflix documentary, "Cave of Bones."To learn more about evolution, check out these episodes.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts

Aug 21, 2023 • 1h 42min
Anxiety, Obsessive Compulsive Disorder, Microglia, From Being a WWII Orphan to the Nobel Prize | Mario Capecchi | 125
Dr. Mario Capecchi, Nobel laureate and genetics professor, discusses studying microglia in anxiety & OCD, his Nobel Prize-winning work, childhood experiences as a WWII orphan in Italy, immigrating to the US, exercise & diet, and advice for aspiring scientists.

Aug 15, 2023 • 1h 29min
Hormonal Contraception, Sex Hormones, Menstruation, Pregnancy, Puberty, Estrogens, Androgens, Effects of Birth Control on Cognition | Adriene Beltz | 124
Send us a textDr. Adriene Beltz is an associated professor of psychology at the University of Michigan who studies the effects of sex hormones & hormonal contraception on human cognition and the brain. They discuss: sex hormones (androgens & estrogens); hormonal regulation of menstruation, puberty, and pregnancy; common forms of hormonal birth control & how they work; effects of sex hormones & hormonal birth control on cognition & the brain; and more.*Not medical advice.Support the showAll episodes, show notes, transcripts, and more at the M&M Substack Affiliates: KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription (cancel anytime) Lumen device to optimize your metabolism for weight loss or athletic performance. Code MIND for 10% off Readwise: Organize and share what you read. 60 days FREE through link SiPhox Health—Affordable at-home blood testing. Key health markers, visualized & explained. Code TRIKOMES for a 20% discount. MASA Chips—delicious tortilla chips made from organic corn & grass-fed beef tallow. No seed oils or artificial ingredients. Code MIND for 20% off For all the ways you can support my efforts