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Episode 104

How Mitochondria Shape Your Mind, Mood, & Mental Health with Dr. Martin Picard

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How Mitochondria Shape Your Mind, Mood, & Mental Health with Dr. Martin Picard

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About the host

Bret Scher, MD

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret Scher, MD

Medical Director, Metabolic Mind and Baszucki Group

Bret is the host of the Metabolic Mind YouTube channel and podcast. He is a board-certified cardiologist, lipidologist, and leading expert in therapeutic uses of metabolic therapies, including ketogenic diets. Prior to joining Baszucki Group, Bret was the medical director at DietDoctor.com, an online platform promoting improving metabolic health through low-carb nutrition, where he was a content creator and medical reviewer. Earlier in his career, he worked as a cardiologist in San Diego. Bret has spent most of his 20-year career as a preventive cardiologist, helping people improve their metabolic health and preventing heart disease using low-carb nutrition and lifestyle interventions. His deep passion for educating the public about the benefits of metabolic therapies grew from his experience with the prevailing medical teaching, which frequently misrepresents nutrition science and undervalues metabolic health. Bret received an MD from The Ohio State University College of Medicine and a BS in Biology from Stanford University. He grew up in San Diego and began competing in triathlons at an early age, which helped fuel his love of health and fitness. He continues to enjoy spending time outdoors mountain biking, swimming, hiking, and playing baseball with his two boys.
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About the guest

Martin Picard, PhD

Martin Picard, PhD

Neurologist and Researcher

Martin Picard, PhD

Neurologist and Researcher

Dr. Picard directs the Mitochondrial Psychobiology Group at CUIMC, which investigates organelle-to-organism communication linking the human experience with molecular and energetic processes inside mitochondria. His laboratory has identified novel membrane structures for mitochondrial communication in rare mitochondrial diseases, showed that cell-free mitochondrial DNA (cf-mtDNA) is a psychological stress-inducible molecule detectable in blood and saliva, and developed a mitochondrial health index (MHI) to study the mind-mitochondria connection in immune cells and brain tissue.
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Key Highlights

  • Mitochondria transform energy (they don’t “make” it) and also synthesize key hormones like cortisol, estrogen, and progesterone—linking cellular metabolism to brain function and experience.
  • A new Nature study (“MitoBrainMap”) voxelized a human brain into 703 MRI-matched cubes, showing large regional differences in mitochondrial content; recently evolved, expanded cortical areas contain more, energy-specialized mitochondria.
  • Distinct brain cell types (excitatory/inhibitory neurons, astrocytes, microglia, oligodendrocytes) have different “mitotypes,” helping explain why similar metabolic stress can lead to diverse psychiatric presentations.
  • Noninvasive tracking may soon be possible by pairing MRI signatures with the map and by developing blood/saliva markers of “energy resistance,” enabling personalized diet, fasting, sleep, and activity interventions over time.
  • Reframing health as an energetic process: small drops in energy flow may drive symptoms (e.g., depression, fatigue, long COVID), while sleep, circadian alignment, fasting, movement, and energizing social connection can restore healthy patterns; a new institute and a forthcoming book, Energy (target 2026), aim to advance this shift.

Transcript

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