Natan Podcast

Natan

In relentless pursuit of truth.

Episodes

  1. Aug 5

    How Trauma Activates Your DNA for Generations | Dr. Ingrid Tulloch | Natan Podcast #1

    Dr. Ingrid K. Tulloch (PhD, biological psychology and behavioral neuroscience, CUNY) explains epigenetics: how experience switches genes on and off without changing the DNA itself. Covers how trauma can pass down as many as six generations, why it's reversible, the role of inflammation and nutrition, and where the supplement industry oversells the science. 0:00 Cold open: shaping our own gene expression, ancestral trauma teaser 0:40 Intro: guest bio, psychoneuroimmunology, 4-part episode roadmap 1:42 Part 1: What epigenetics actually is (gene on/off, not DNA rewriting) 3:34 The "book and punctuation" analogy: comma vs. period 5:53 Natan's analogy tested: the "hit by a car" comma/period example 6:14 Ingrid's scientific origin story: astrophysics to cancer lab to psychology 9:12 The zebra finch dopamine study 10:37 Why zebra finches matter: parallels to human language development 12:10 Why this matters: social, behavioral, and biological health 16:19 Part 2: Can trauma be inherited across generations? 17:09 Resilience vs. PTSD: why the same event affects people differently 17:36 The NYU Holocaust descendants study 19:40 Epigenetic marks are inheritable—but reversible 20:31 Part 3: What reverses it? Nutrition and anti-inflammatories 20:54 What inflammation actually is 22:22 Inflammation's link to Alzheimer's and psychological disorders 23:19 Animal studies vs. humans: correlation and causation 24:57 Turmeric: benefits and limitations 28:39 Why turmeric needs black pepper 31:01 How curcumin works: Toll-like receptor 4 explained 34:02 Saffron: anti-inflammatory and cognitive effects 35:52 The marketing problem: science vs. supplement hype 36:36 Part 4: The evidence against her own research 38:03 Dream experiment: can biology make people kinder? 40:15 AI's role in psychoneuroimmunology 42:03 Should we speed up science? 42:34 Outro

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In relentless pursuit of truth.