You caught something today without noticing it. Maybe a colleague's anxiety before the meeting even started, maybe a friend's laugh you could not hold back. Your brain runs a continuous transmission system that broadcasts your emotional state to everyone near you, and you cannot switch it off.

Learn more, get certified, take the Personal Threat Profile, and book 1:1 coaching at brainwiseenterprises.com.

What you get in this episode:

• Why the early afternoon is the contagion hour, and why the "post-lunch dip" name is wrong
• The suprachiasmatic nucleus, the 12-hour alertness harmonic, and what happens to inhibitory control in the trough
• Robert Provine's finding that laughter runs about 30 times more frequently in company than alone
• The two separate brain systems behind spontaneous laughter and performed social laughter
• Billing and colleagues on empathy, auditory-motor mirroring, and how contagious a laugh feels
• Caruana and Rizzolatti on the mirroring mechanism that maps hearing a laugh onto producing one
• Why contagious yawning tracks social bonding rather than tiredness, and why suppressing a yawn suppresses an empathy signal
• Hatfield, Cacioppo and Rapson's 1993 definition of emotional contagion and the mimicry mechanism beneath it
• Sigal Barsade's ripple effect research on how one person's mood reshapes a whole team
• Why a leader's state spreads further and faster than anyone else's
• How the participation and protection drivers determine who catches what

Rate, review, and follow us at @mybrainwisecoach. It genuinely helps other people find the show.

00:00 The Two O'Clock Recording Experiment

02:29 Welcome And Episode Roadmap

03:31 Circadian Dip And Inhibitory Control

06:34 Laughter As A Social Signal

08:28 Contagious Laughter And Mirror Systems

10:37 Contagious Yawning And Empathy

13:57 Emotional Contagion Research Foundations

15:50 Emotional Contagion In Organizations

18:08 Who Catches What And Why

20:18 Practical Field Guide Three Actions

21:43 You Are Never Not Transmitting

23:04 Closing Thoughts And Sign Off

• Provine, R. R. (2000). Laughter: A Scientific Investigation. Viking Penguin. The 30-times-more-frequent-in-company figure checks out.
• Billing, A. D. N., Cooper, R. J., & Scott, S. K. (2021). Pre-SMA activation and the perception of contagiousness and authenticity in laughter sounds. Cortex, 143, 57–68. https://doi.org/10.1016/j.cortex.2021.06.010
• Caruana, F., Avanzini, P., Pelliccia, V., Mariani, V., Zauli, F., Sartori, I., Del Vecchio, M., Lo Russo, G., & Rizzolatti, G. (2020). Mirroring other's laughter. Cingulate, opercular and temporal contributions to laughter expression and observation. Cortex, 128, 35–48. https://doi.org/10.1016/j.cortex.2020.02.023
• Hatfield, E., Cacioppo, J. T., & Rapson, R. L. (1993). Emotional contagion. Current Directions in Psychological Science, 2(3), 96–100. https://doi.org/10.1111/1467-8721.ep10770953
• Barsade, S. G. (2002). The ripple effect: Emotional contagion and its influence on group behavior. Administrative Science Quarterly, 47(4), 644–675. https://doi.org/10.2307/3094912
• Kramer, A. D. I., Guillory, J. E., & Hancock, J. T. (2014). Experimental evidence of massive-scale emotional contagion through social networks. PNAS, 111(24), 8788–8790. https://doi.org/10.1073/pnas.1320040111

Smart, accomplished people become the worst learners in the room the moment something is their fault. That isn't arrogance and it isn't a character flaw. It's a threat response your brain runs automatically, built by decades of being rewarded for being right.

Learn more, get certified, take the Personal Threat Profile (PTP), and book personalized 1:1 coaching at brainwiseenterprises.com.

Phil and Cole cover:

• Chris Argyris and his 1991 Harvard Business Review article "Teaching Smart People How to Learn"
• The doom loop, and why intelligence gets spent avoiding a problem instead of solving it
• Single loop versus double loop learning, and the thermostat that questions its own setting
• The protection driver, the amygdala, and why your prefrontal cortex goes offline exactly when you need it most
• Self-serving attribution bias and its neural signature
• How twenty years of education and two decades of professional reinforcement install competence as identity
• Jason Moser's EEG research on the ERN and the Pe, and what a growth mindset brain does differently after a mistake
• Striatal connectivity, the dorsal anterior cingulate cortex, and mindset becoming physiology
• Carol Dweck on why fixed mindsets avoid challenge
• Amy Edmondson, psychological safety, and why the best medical teams reported more errors
• Why culture design changes behavior and exhortation doesn't

Rate, review, and follow at @mybrainwisecoach. Your reviews put this show in front of people who need it.

00:00 Argyris And The Doom Loop

01:51 Welcome To Neuroscience Digest

03:13 What Argyris Actually Observed

04:30 Single Loop Versus Double Loop Learning

05:51 The Protection Driver And Amygdala

07:04 Self Serving Attribution Bias

09:23 How Education Installs The Pattern

11:09 Why High Achievers Are Vulnerable

12:19 Moser EEG Study On Mistakes

14:41 Growth Mindset And Brain Connectivity

15:31 Dweck On Fixed Mindset Avoidance

16:34 Edmondson On Psychological Safety

17:38 The Neuroscience Of Speaking Up

19:23 Culture Design Beats Exhortation

20:04 The Single Most Important Takeaway

21:38 The Question Worth Asking

• Argyris, C. (1991). Teaching Smart People How to Learn. Harvard Business Review, 69(3), 99–109. https://hbr.org/1991/05/teaching-smart-people-how-to-learn
• Blackwood, N. J., Bentall, R. P., ffytche, D. H., Simmons, A., Murray, R. M., & Howard, R. J. (2003). Self-responsibility and the self-serving bias: an fMRI investigation of causal attributions. NeuroImage, 20(2), 1076–1085. https://doi.org/10.1016/S1053-8119(03)00331-8
• Wang, X., Zheng, L., Li, L., Sun, P., & Guo, X. (2021). Actor or recipient role matters: Neural correlates of self-serving bias. Brain and Behavior, 11(3), e02013. https://doi.org/10.1002/brb3.2013
• Moser, J. S., Schroder, H. S., Heeter, C., Moran, T. P., & Lee, Y.-H. (2011). Mind Your Errors: Evidence for a Neural Mechanism Linking Growth Mind-Set to Adaptive Posterror Adjustments. Psychological Science, 22(12), 1484–1489. https://doi.org/10.1177/0956797611419520
• Myers, C. A., Wang, C., Black, J. M., Bugescu, N., & Hoeft, F. (2016). The matter of motivation: Striatal resting-state connectivity is dissociable between grit and growth mindset. Social Cognitive and Affective Neuroscience, 11(10), 1521–1527. https://doi.org/10.1093/scan/nsw065
  
• Dweck, C. S. (2006). Mindset: The New Psychology of Success. Random House.
• Edmondson, A. C. (1996). Learning from mistakes is easier said than done: Group and organizational influences on the detection and correction of human error. Journal of Applied Behavioral Science, 32(1), 5–32.
• Edmondson, A. C. (1999). Psychological Safety and Learning Behavior in Work Teams. Administrative Science Quarterly, 44(2), 350–383. https://doi.org/10.2307/2666999
• Milliken, F. J., Morrison, E. W., & Hewlin, P. F. (2003). An Exploratory Study of Employee Silence: Issues that Employees Don't Communicate Upward and Why. Journal of Management Studies, 40(6), 1453–1476. https://doi.org/10.1111/1467-6486.00387
  

Cold plunges promise depression relief, anxiety elimination, and a full nervous system reset. Something real does happen in your brain when you hit freezing water. The distance between that neurochemistry and the transformation stories filling your feed is where this conversation lives.

Visit brainwiseenterprises.com to learn more, get certified, take the Personal Threat Profile (PTP), and book personalized 1:1 coaching.

Here's what you get:

• The norepinephrine surge behind that post-plunge high, and why the same mechanism drives an entire class of antidepressants
• Šrámek and colleagues on dopamine rising roughly 250% during cold water immersion
• Yankouskaya's 2023 fMRI study showing measurable brain connectivity changes in 33 first-time cold water bathers
• What the January 2025 PLOS One systematic review and meta-analysis actually concludes about cold water immersion and mental health
• Why small samples and confounded lifestyles make cold plunge research so hard to trust
• The placebo problem you can't design around: nobody gets a fake ice bath
• Which ingredient does the work, voluntary discomfort, breathing, community, or mastery
• How cold plunging feeds all three Personal Threat Profile drivers: protection, participation, and prediction
• Cold shock response safety, habituation, and who should talk to a doctor first

If this changes how you think about your brain, rate, review, and follow us at @mybrainwisecoach. It helps more than you know.

00:00 The Question That Started This

00:55 Welcome To My BrainWise Coach

02:11 Ice Bath Sales Explode Overnight

03:16 What Cold Does Neurochemically

03:45 Norepinephrine Surge And Antidepressant Mechanism

05:45 Dopamine Rises Two Hundred Fifty Percent

06:38 fMRI Evidence For Brain Connectivity

08:46 What The Systematic Review Found

10:47 The Confounding And Placebo Problem

12:52 Which Part Actually Does Work

14:54 Personal Threat Profile Driver Analysis

17:00 Cold Shock Response Safety Warning

18:36 The Honest Bottom Line

21:06 Closing Thoughts And References

1. Šrámek, P., Šimečková, M., Janský, L., Šavlíková, J., & Vybíral, S. (2000). Human physiological responses to immersion into water of different temperatures. European Journal of Applied Physiology, 81(5), 436–442. https://doi.org/10.1007/s004210050065
Immersion at 14°C increased plasma noradrenaline by 530% and dopamine by 250%. The 250% figure Phil quotes is correct. Springer

2. Yankouskaya, A., Williamson, R., Stacey, C., Totman, J. J., & Massey, H. (2023). Short-Term Head-Out Whole-Body Cold-Water Immersion Facilitates Positive Affect and Increases Interaction between Large-Scale Brain Networks. Biology, 12(2), 211. https://doi.org/10.3390/biology12020211
Thirty-three healthy adults naive to cold-water swimming (ages 20 to 45, 16 female) took a 20°C five-minute whole-body bath, with brain connectivity and self-reported emotional state measured before and after. Every number Phil gives checks out.

3. Cain, T., Brinsley, J., Bennett, H., Nelson, M., Maher, C., & Singh, B. (2025). Effects of cold-water immersion on health and wellbeing: A systematic review and meta-analysis. PLOS ONE, 20(1), e0317615. https://doi.org/10.1371/journal.pone.0317615
Published January 29, 2025, pre-registered on PROSPERO (CRD42024500591). This is also the source of the Amazon figure: ice bath sales rose from under 1,000 units in November 2022 to over 90,000 units twelve months later.

You look in the mirror and see something the rest of the room does not. That gap is rarely modesty and rarely simple low self-esteem. It is your brain building a self-model from the worst data it has access to, then calibrating that model against a reference group that may not be real.

Head to brainwiseenterprises.com to get certified, take your Personal Threat Profile (PTP), and book personalized 1:1 coaching.

Phil and Cole walk you through:

• Tobias Greitemeyer's six-study research showing that attractive people underestimate their own attractiveness
• The reference group problem, and how the nucleus accumbens and orbitofrontal cortex quietly reset your baseline for "ordinary"
• Thornton and Moore's physical attractiveness contrast effect
• Zell and Balcetis's face-morphing studies, where upward social comparison changes what you visually perceive as your own face
• The structural information problem: why mirrors, photographs, and memory all hand you worse data than a stranger gets across two hours of dinner
• Why you prefer your mirror image while your friends prefer your photograph
• Body dysmorphic disorder, holistic versus detail visual processing, and Jamie Feusner's neuroimaging program
• The frontostriatal and orbitofrontal-caudate loops that BDD shares with OCD
• Why the Protection driver in your PTP fires on appearance threat, and what that costs you
• Why telling someone they are beautiful does not work, and what actually shifts the calibration

Content note: this episode covers body image and appearance-related distress.

Rate, review, and follow @mybrainwisecoach wherever you listen. Your review helps another BrainWise friend find the show.

00:00 The Ex-Miss Hawaii Dinner Story

01:45 Welcome And Episode Roadmap

02:38 Setting The Register Up Front

02:59 Attractive People Underestimate Their Attractiveness

04:11 Why This Reverses Above-Average Effect

05:00 The Reference Group Problem

06:29 Contrast Effects And Face Morphing

08:08 The Structural Information Problem

09:44 Mirror Images Versus Photographs

10:26 Body Dysmorphic Disorder Explained

12:07 Feusner Holistic Versus Detail Processing

14:26 Object Processing And OCD Overlap

15:53 Confidence Costs Of Inaccurate Self-Models

17:54 What Actually Helps Instead

19:01 Closing Synthesis And Takeaways

You hear about every cognitive enhancer on the market. Sleep protocols, cold plunges, nootropics, red light therapy. Psycholinguist Falk Huettig argues the most powerful one is free, ancient, and already sitting on your shelf. Reading changes what your brain can do, including in domains that have nothing to do with language.

Learn more at brainwiseenterprises.com, where you can get certified, take the Personal Threat Profile (PTP), and book personalized 1:1 coaching.

You will hear:

• Why the postulated cortical invasion hypothesis predicts reading should damage your face recognition, and why the data shows the opposite
• How Huettig's team runs a natural experiment in India, comparing literate and illiterate adults from the same communities
• The neuronal recycling theory, and what fine-grained visual discrimination training does to the rest of your visual system
• Why reading proficiency sits on a lifelong continuum instead of a switch you flip in childhood
• What PISA assessments show about how few readers reach the highest levels of critical reading
• The real reason paper beats screens, and why self-regulation matters more than backlit displays
• Where audiobooks help you, and where they stop short
• Why simplifying text with AI readability tools strips out the friction that builds your brain
• Huettig's vinyl record warning about deep reading fading from everyday life

Pick up the harder sentence today. If this episode changes how you think about your own reading, rate, review, and follow the show. Find us everywhere @mybrainwisecoach.

00:00 Reading As A Cognitive Enhancer

02:15 Welcome And Episode Roadmap

03:15 Neuronal Recycling And Cortical Invasion

05:20 The India Literacy Natural Experiment

06:45 Reading Sharpens Visual Discrimination

08:10 Reading Proficiency As Lifelong Continuum

09:10 PISA And Critical Reading Levels

10:00 Print Versus Screen Comprehension Gap

12:00 Audiobooks Versus Reading Actual Text

13:20 Why Simplifying Text Backfires

15:35 Will Deep Reading Go Vinyl

17:20 The Single Most Important Takeaway

18:50 Close And Reading Challenge

Your brain kept a secret from science for a century. This week closes the anniversary series with six discoveries that did not exist on the map in 2015, from new neurons in the adult brain to a hippocampus that keeps learning while you are fully unconscious. Each one reshapes how you think about focus, recovery, connection, and the way real change actually happens.

You hear how the research now stands, and what it means for the way you work and develop:

• Adult neurogenesis and the lifestyle factors that grow or suppress new neurons
• How chronic cortisol reshapes the prefrontal cortex, plus Eleanor Maguire's London taxi driver study
• The gut-brain axis, the enteric nervous system, and the microbiome as your second brain
• Naomi Eisenberger and John Cacioppo on social isolation as physical pain
• Katlowitz, Sheth, and the Baylor team on a hippocampus that learns under anesthesia
• Interoception and intuition through the work of Anil Seth, Sarah Garfinkel, and Hugo Critchley
• Why psilocybin research stays a watching brief rather than a confirmed finding

If this show helps you think differently about how your brain actually works, take a moment to rate, review, and follow the series wherever you listen, then come find us and join the conversation at @mybrainwisecoach.

00:00 Six Neuroscience Discoveries Since 2015

02:15 New Neurons Throughout Adult Life

05:30 How Stress Reshapes Brain Structure

07:55 Gut-Brain Axis And The Second Brain

10:20 Social Isolation And Physical Pain Circuits

13:00 Hippocampus Learns Under General Anesthesia

16:10 Interoception And The Science Of Intuition

19:40 Psilocybin And Treatment-Resistant Depression

22:20 What A Decade Of Neuroscience Revealed

24:20 Closing Reflections And Listener Thanks

Six things you were told about your brain that turn out to be incomplete. One year into My BrainWise Coach, Phil Dixon and Cole Bastian revisit the claims they made with confidence and look honestly at where the science has moved. Being corrected is not a setback. It makes the picture more interesting, and it changes how you work.

You hear:

• Why Karl Friston's predictive processing framework replaces the computer model of the brain, and why you cannot think your way out of a pattern
• A 2025 Nature Communications paper from Mousley and colleagues mapping five phases of brain development with transitions at nine, 32, 66, and 83
• Why the shift at 32 is a reorganization rather than a peak followed by decline, and why your forties are your most contextually capable years
• How the default mode network handles memory consolidation, future simulation, and insight, and why high performers switch between networks more cleanly
• The precise version of the multitasking claim, and how skill automatization frees executive capacity for what matters
• Maiken Nedergaard's discovery of the glymphatic system, the brain's waste clearance mechanism that runs far more actively during sleep
• Where Iain McGilchrist's work on hemispheric attention holds up, where A.C. Grayling's critique lands, and how to use the distinction with humility

If this show changes how you think about your own brain, rate and review it wherever you listen. Follow @mybrainwisecoach on every platform for part two, six discoveries that were not even on the map.

00:00 A Year Of Being Wrong

00:01 The Question That Started This

00:02 Six Revisions, Six Discoveries

00:03 Predictive Processing Replaces The Computer Model

00:05 Five Phases Of Brain Development

00:08 Default Mode Network And Insight

00:10 What Multitasking Research Actually Says

00:12 The Glymphatic System And Sleep

00:14 Where The Glymphatic Model Is Debated

00:15 McGilchrist And Hemispheric Attention

00:17 Where The Grand Thesis Breaks Down

00:19 The Thread Connecting All Six

00:20 White Paper And Close

You tell yourself you will save half the chocolate bar for tomorrow. You already know how that usually ends. This episode breaks down what actually happens in your brain the moment now competes with later, and why the pull of now runs so much stronger than it has any right to.

Here is what you get into:

• The two-system brain model from McClure, Laibson, Loewenstein, and Cohen (2004), and why an available-now reward lights up your limbic system while your prefrontal cortex quietly does the math
• George Ainslie's hyperbolic discounting, and why the self-control strategies that work are really distance management, not willpower contests
• What Walter Mischel's marshmallow test actually measured, and how Watts, Duncan, and Quan's 2018 replication shrank the myth once family background entered the picture
• The WEIRD sample problem from Henrich, Heine, and Norenzayan, and why most foundational decision research studied a narrow slice of humanity
• Cross-cultural time preferences from Wang, Rieger, and Hens across 53 countries, plus Keith Chen's contested work linking language to saving
• How your mood shifts your discount curve, and what that means for your Personal Threat Profile and everyday coaching
• The TRICC Project, a live global study from Dr. Kristof Keidel and Prof. Ulrich Ettinger at the University of Bonn that you can still take part in

If this helps you see your own choices more clearly, rate and review the show, then follow @mybrainwisecoach across your platforms.

00:00 Why Now Beats Later

02:00 Welcome To Neuroscience Digest

03:00 Two Brain Systems For Reward

06:00 Why Immediate Reward Won Out*

08:00 Hyperbolic Discounting And Proximity

09:00 Self Control As Distance Management

10:00 The Marshmallow Test Reconsidered*

13:00 Revisiting The Marshmallow Replication

15:00 The WEIRD Sample Problem

17:00 Culture And Time Preferences*

18:00 Universal Hardware, Local Calibration

19:00 Mood, State, And The Discount Curve*

20:00 Inside The TRICC Project

22:00 How To Join The Study*

23:00 The Practical Field Guide

24:00 Save Half The Chocolate Bar*

Someone you love is upset, and your first instinct is to make them feel better fast. A new study across seventeen countries finds that instinct is not human nature. It is a cultural habit, strong in the United States, the United Kingdom, and Germany, and largely absent in South Korea, Japan, India, and China.

You walk through the finding, then bring in the neuroscience of empathy to explain why the line falls where you stop managing your own feelings and start managing someone else's.

You will hear:

• A cross-cultural study in PNAS on interpersonal emotion regulation, surveying roughly 6,900 people across 17 countries and tracking real couples in Germany and South Korea
• Why managing your own emotions looks nearly identical everywhere, while helping someone else splits sharply along cultural lines
• Why some cultures treat negative emotion as a malfunction to fix and others treat it as functional and worth sitting with
• Affective empathy versus cognitive empathy, and the brain regions behind each, including the insula, anterior cingulate, temporoparietal junction, and medial prefrontal cortex
• What autism and psychopathy research reveals about two separable empathy systems
• A field guide for coaches and leaders, and the Personal Threat Profile participation driver

Care is not one universal script. The most skilled version asks what actually fits the person in front of you.

If this helps you think differently about how your brain works, rate and review us five stars wherever you listen, then follow and share at @mybrainwisecoach.

00:00 The Instinct To Comfort Others

02:00 Welcome And The Central Claim

03:00 Your Emotions Versus Someone Else's

05:00 The Individualist Collectivist Split

06:00 When Sadness Has A Purpose

08:00 Couples Data From Germany And Korea

10:00 When Good-Faith Care Misses

11:00 Two Kinds Of Empathy

13:00 Autism, Psychopathy, And Split Empathy

14:00 What Culture Actually Installs

15:00 Brain Imaging Of Regulating Others

17:00 How Culture Shapes The Self

19:00 A Field Guide For Coaches

20:00 Ask A Better Question

21:00 The PTP Participation Connection

22:00 The Empathy Line, Self And Other

23:00 References And Close

Your child's brain builds its most important circuits during two specific windows, age one and age six. What happens in those windows shapes learning and memory for the next decade, and it matters far more than any screen time headline suggests. You learn what the developing brain builds and what it needs from you.

You will learn:

• The GUSTO birth cohort study from Inserm and the National University of Singapore (World Journal of Pediatrics, 2026), which followed 502 children and found a U-shaped risk pattern across age one and age six
• Why the effect sizes at age one are the largest measured, and how early infancy works as a window of heightened sensitivity
• John Hutton's brain imaging research at Cincinnati Children's Hospital (JAMA Pediatrics, 2019), using diffusion tensor imaging to link screen use with white matter development
• Serve and return interaction, and why reciprocal human contact wires language, attention, working memory, and executive function
• WHO and American Academy of Pediatrics screen guidelines and the developmental biology behind them
• The 2025 Academic Pediatrics study connecting high preschool screen time to weaker inhibitory control and cognitive flexibility
• The Personal Threat Profile (PTP) link between children's executive function and adult performance under pressure

The takeaway frees rather than alarms: your child's brain is not waiting for content, it is waiting for connection.

If this helps you think differently about how your brain works, rate, review, and follow the show, then share it with a parent who needs it. Find us everywhere at @mybrainwisecoach.

00:00 What A One-Year-Old Brain Needs

02:00 Neuroscience Digest Episode Introduction

03:00 The GUSTO Screen Time Study

04:00 The Surprising U-Shaped Pattern

05:00 Why Ages Two And Three Differ

07:00 Population Risk Versus Individual Risk

08:00 What The Infant Brain Builds

09:00 Serve And Return Interaction Explained

11:00 Hutton Brain Imaging White Matter Study

12:00 WHO And AAP Screen Guidelines

13:00 The School-Entry Window Reemergence

14:00 Prefrontal Cortex And Executive Function

15:00 Academic Pediatrics Preschooler Study

16:00 Working Memory Explained For Parents

18:00 Screen Quality And Parental Co-Viewing

20:00 Executive Function And Adult PTP

22:00 Practical Reassurance For Parents

24:00 Three Takeaways For Parents Educators

26:00 The Brain Waits For Connection

27:00 Closing Reflection And Sign-Off