Mind & Matter

Send us Fan Mail Nick talks to Daniel Brady, PhD a neuroscientist who studied sensory systems in the developing brain. Dr. Brady is also the co-founder and CEO of Orita.ai, a startup using machine learning & AI to solve data problems for direct-to-consumer brands. They discuss: critical periods of learning, childhood brain development, neuroplasticity, synesthesia, language acquisition, Orita....

Send us Fan Mail Nick talks to Dr. Rusty Gage, a neurobiologist at the Salk Institute whose lab studies how genes & environment interact to influence brain development, including the process of adult neurogenesis. They discuss: what neurogenesis is and how it works; lifestyle factors that influence neurogenesis, such as exercise, intermittent fasting, etc.; molecular pathways involved in neuro...

Send us Fan Mail Nick talks with Nick Mosley, who is CEO of a cannabis testing lab called Confidence Analytics, which conducts analytical testing for legal cannabis products in Washington & California. They discuss: how analytical testing for cannabis products works; THC, CBD, and cannabinoid content; terpenes; pesticides, heavy metals, and microbial contaminants; the phenomenon of THC inflati...

Send us Fan Mail What is Mind & Matter? Whether food, drugs or ideas, what you consume influences who you become. Learn directly from the best scientists & thinkers about alive today about how your body & mind react to what they’re fed. The weekly M&M podcast features conversations with the most interesting scientists, thinkers, and technology entrepreneurs alive today. Learning ph...

Send us Fan Mail Nick talks to psychiatrist & neuroscientist Devanand Manoli, MD, PhD, whose lab at UCSF studies the neural basis of social behavior & attachment in prairie voles. As a psychiatrist, he also treats patients with childhood psychosis. They discuss: the neural basis of pair bonding, monogamy, and parental & sexual behavior; oxytocin, vasopressin, testosterone & estroge...

Send us Fan Mail Nick talks to Dr. Paul Cisek, a neuroscientist at the University of Montreal who studies sensorimotor control & decision making in primates. They discuss: the evolution of the brain from the earliest nervous systems to humans; metabolism & state control; the evolution of behavior; sensation, perception, cognition, decision making & consciousness; language & represe...

Send us Fan Mail Nick talks to Dr. Stephen Simpson & Dr. David Raubenheimer, both professors at the University of Sydney who have been research collaborators for many years. Their research focuses on understanding animal feeding behavior, especially how & why different animals use their sensory systems in order to consume foods so that their diets contain the right balance of nutrients. Un...

Send us Fan Mail Nick talks to Dr. Christoffer Clemmensen, who runs the Metabolism & Molecular Pharmacology group at the University of Copenhagen in Denmark. His lab studies the biological basis of obesity & other metabolic disorders. They discuss: the causes of obesity; environmental and biological factors influencing predisposition to obesity; novel anti-obesity drugs; gut hormones &...

Send us Fan Mail Nick talks to academic dermatologist Dr. Richard Weller about: skin health; benefits & risks of sunlight & UV radiation exposure; nitric oxide, blood pressure & cardiovascular health; vitamin D; sunscreen & tanning; the evolution of skin color & skin physiology; and more. *Not medical advice. Support the show Support my work: Good Chemistry : Science-based heal...

Send us Fan Mail Nick talks to biologist Dr. Christoph Thaiss, a professor at the University of Pennsylvania. His lab studies how the body detects & responds to environmental stimuli, with a focus on interactions between the gut microbiome, immune & nervous systems. They discuss: sensory systems of the body & basic principles of how they work; gut microbiome & the consequences of d...

Send us Fan Mail Nick talks to biochemist & biophysicist Dr Ryan Gumpper, a postdoc in Dr. Bryan Roth's lab at the University of North Carolina. They discuss the biochemistry, molecular biology & biophysics of serotonin receptors, including the molecular details for what happens when serotonin and tryptamines psychedelics (e.g. LSD) bind to 5HT2A receptors in the brain. They also disc...

Send us Fan Mail Nick talks to anesthesiologist & neuroscientist Dr. Alex Proekt, who runs a lab at the University of Pennsylvania, about altered states of consciousness. They discuss: NREM & REM sleep, anesthesia & anesthetic drugs like propofol; coma & vegetative states; sleeping pills like Ambien; the relationship between consciousness & the underlying brain dynamics; how ke...

Send us Fan Mail Nick talks to Jay Bhattacharya, MD, PhD, who is a professor of medicine & economics at Stanford University. They discuss various aspects of the COVID pandemic, such as: how infectious, transmissible, and deadly SARS-CoV-2 is; mRNA vaccines, how well they stop transmission vs. severe COVID, and whether they can induce negative side effects such as myocarditis; how well masks re...

Send us Fan Mail Nick talks to Dr. Sergiu Pasca, a developmental neuroscientist and professor at Stanford University. They discuss topics related to human brain development, the origins of neuropsychiatric disease like autism & schizophrenia, new technologies for studying brain development, stem cells, and recent experiments from Dr. Pasca'a lab utilizing brain "organoids," &quo...

Send us Fan Mail Nick talks to computational neuroscientist Dr. Zach Mainen, a neuroscientist and director of the Champalimaud Neuroscience Programme at the Centre of the Unknown in Lisbon, Portugal. His lab studies the neuroscience of decision making, neuromodulation & behavior using both experimental and computational approaches.  They discuss: what kinds of things animal brains are actually...

Send us Fan Mail Nick talks to mathematical biologist Dr. Alex Washburne about the origins of the SARS-CoV-2 virus. *Not medical advice. Support the show Support my work: Good Chemistry : Science-based health consulting AquaTru : Water filtration devices that remove microplastics, metals, bacteria, and more from your drinking water. Through link, $100 off AquaTru Carafe, Classic & Under Sink U...

Send us Fan Mail Nick talks to experimental psychologist Dr. Harriet de Wit, a professor at the University of Chicago whose lab studies the behavioral effects of psychoactive drugs on humans. They discuss: the effects of MDMA on emotional perception and touch sensation; the effects of microdosing LSD; THC's impact on memory. *Not medical advice. Support the show Support my work: Good Chemistr...

Send us Fan Mail Nick talks to biological anthropologist & neuroscientist Dr. Terrence Deacon, who is a professor of biological anthropologist at UC-Berkeley and a leading thinker on the evolution of language, consciousness and human cognition. They discuss: how end-directed systems, such as life, can emerge from non-life; how complexity evolves once life originates; the origins of sentience a...

Send us Fan Mail Nick talks to neuroscientist Dr. Kent Berridge, a professor of psychology & neuroscience at the University of Michigan. They discuss: the neurobiology of the brain processes rewards and generates pleasure & motivation; the difference between "liking" and "wanting"; hunger and whether food addiction is similar to drug addiction; emotion and consciousness...

Send us Fan Mail Nick talks to Dr. Amir Englund, a psychopharmacologist at the Institute of Psychiatry, Psychology & Neuroscience at King's College, London. Dr. Englund's research focuses on the effects of cannabis, medical marijuana and specific cannabinoids (e.g. THC, CBD, THCV) on human cognitive function. They discuss topics including: what is the addiction liability of marijuana...

Send us Fan Mail Nick talks to molecular physiologist Dr. Dudley Lamming, a professor of medicine at the University of Wisconsin-Madison whose lab studies how the body responds to the nutrient and calorie content of food. We discuss: how the protein and amino acid composition of food impacts metabolic health & aging; branched chain amino acids & disease; sex differences between males &...

Send us Fan Mail Nick talks to genetics researcher & writer Razib Khan. Razib did graduate work in genetics at the University of California-Davis and recently founded a genomics data startup. He also runs a Substack, "Unsupervised Learning," where he writes a lot of fascinating articles on the subjects of human evolutionary & population genetics, personal genomics, and more. Nick...

Send us Fan Mail Nick talks to Christian Lüscher, MD, PhD, a neuroscientist at the University of Geneva whose lab studies the cellular mechanisms that underlie drug reinforcement, dependence and addiction. Dr. Lüscher talks about the nature of addictive drugs in the brain, how ketamine works, and the latest research from his lab look at how ketamine's unique effects within the brain's re...

Send us Fan Mail Nick talks to neuroscientist Dr. David Anderson, a professor at Caltech whose lab studies the neurobiological basis of animal behavior and emotion. They discuss: technologies for understanding cause-and-effect in the brain; neurobiological basis of animal behavior, including aggression/fighting, mating, feeding, and social behavior; how hormones such as estrogen regulate behavior;...

Send us Fan Mail Nick talks to psychiatrist Dr. Joanna Moncrieff about depression. What causes it? How do SSRIs work? How well do antidepressants work? What are the risks & benefits of long-term antidepressant use? What is the evidence that depression is caused by a chemical imbalance (too little serotonin) in the brain? How is social media & technology influencing mental health? Learn mor...