Why does gut health affect your brain and metabolism so deeply?

Martha Carlin explains how the microbiome, endotoxin, & the glycocalyx influence energy, cognition, and long-term resilience & why gut repair is central to protecting longevity.

Martha Carlin is a pioneering citizen scientist & systems researcher who investigates the links between the microbiome, chronic disease & environmental toxins after her husband’s Parkinson’s diagnosis. She is the founder & CEO of The BioCollective, collaborating with leading institutions while developing BioFlux™ metabolic modeling & Sugar Shift®, a patented probiotic shown to improve metabolic health. Martha’s work bridges science & real-world application, empowering people to restore gut balance & transform whole-body health.

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• Be mindful of everything you eat & drink Your body reflects daily choices
• The modern food supply including chemicals & engineering drives or disrupts long-term wellness
• Your gut microbiome influences nearly every aspect of health, not just digestion
• Gut bacteria differences correlate with neurological disease profiles such as Parkinson’s
• Stool analysis reveals more health data than most expect Investigate output for internal clues
• Genetic material from food & microbes transfers into the body, influencing health in unexpected ways
• Single-strain probiotics fall short Full microbial teams support stronger gut ecosystems & outcomes
• Household chemicals damage the gut lining Auditing cleaning products protects barrier health
• Gut health depends on balance & relationships, not just which organisms exist
• Quality water & whole foods are the strongest foundational longevity levers so start there

04:12 Recognize the microbiome as a driver of chronic disease

05:51 Address the gaps in modern gut health care

17:25 How microbes adapt, share genes & influence biology

21:07 Build resilient microbial ecosystems instead of single strain fixes

41:05 Protect the gut lining to reduce inflammation system wide

• Watch it on YouTube: https://youtu.be/4Z1f2pr6QjY
• Full episode show notes: outliyr.com/243

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Nick

Think overthinking means you’re just too analytical?

Kevin breaks down how the “stone age brain” drives stress loops, & how mindfulness, savoring, & simple cognitive tools help high achievers build resilience & mental toughness.

Kevin Stacey, MBA is an effectiveness expert & former brain imaging specialist who helps individuals & organizations improve performance, resilience & results using neuroscience-based strategies. As the founder of TrainRight, he has trained over 80,000 people across multiple countries to overcome mental barriers & achieve peak performance.

With a background spanning military service, healthcare & corporate leadership, Kevin is also the author of MindRight & TimeRight and a trusted advisor to leading global organizations.

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• The mind should guide your thoughts—don’t let an outdated fear based brain run the show
• You rewire your brain by focusing on the thoughts & feelings you want instead of repeating old patterns
• Staying with positive experiences even briefly builds resilient neural pathways for happiness & gratitude
• Not all thoughts are true or important Most are mental noise & recognizing this restores power & freedom
• Simple pattern interrupts like better questions or environment shifts break negative loops before they spiral
• Writing racing thoughts down reduces overwhelm & exposes distortions, making them easier to question or release
• How you start the day sets your mindset Lead with intention before emails or distractions
• Feeling emotions fully for about 90 seconds prevents getting stuck in unhelpful loops
• Setting boundaries around draining people or topics protects focus, energy, & mood
• Meditation trains returning attention rather than stopping thoughts, building mental resilience like a bicep curl

01:29 How to use the brain as a tool not a master

08:12 How neuroplasticity rewires thoughts emotions & behavior

12:28 Practical tools to interrupt negative thought loops

23:28 How identity story & language shape your inner state

27:44 Daily practices to build regulation resilience & clarity

28:45 What's great about meditation

35:22 Joe Dispenza's mind movies

46:20 Fighting to get better sleep

• Watch it on YouTube: https://youtu.be/os2dKwnmWS0
• Full episode show notes: outliyr.com/242

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Nick

Ever wonder how elite athletes stay calm under pressure?

Santiago Brand explains how brain mapping, neurofeedback, & HRV training build focus, emotional control, & consistent high performance without relying on stimulants or shortcuts.

Santiago Brand is a sports & clinical psychologist with over sixteen years of experience specializing in biofeedback, neurofeedback, qEEG brain mapping & BrainSpotting. A board-certified, bilingual expert, he has trained professionals across twenty-four countries & consulted for Olympic committees & elite sports organizations worldwide. He also serves as faculty for international biofeedback institutions, earning global recognition for advancing performance, focus & self-regulation.

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• Brain activity tells the real story even when words don’t match feelings or experiences
• Learning to regulate your physiological state boosts performance, resilience, & decision making under pressure
• Training the brain & body with biofeedback builds lasting improvements while supplements or hacks deliver short lived results
• Effective brain & body training adapts to your unique physiology, mindset, & life demands rather than generic protocols
• Individualized HRV breathwork gives leverage for handling stress, improving sleep, & leading under pressure
• Emotional responses register in the heart before the brain consciously recognizes them
• Neurofeedback lets you see & shape mental states in real time, leading to lasting behavioral change
• Device data supports progress, but mastering the skill matters more than chasing scores
• Solving complex or less studied issues requires experimentation, objective feedback, & detailed tracking over published studies
• Brain mapping reveals root causes behind symptoms, guiding precise solutions instead of surface level fixes

00:00 How biofeedback trains self regulation at the physiological level

04:20 How neurofeedback changes brain baselines long term

05:32 Why personalization matters in brain & nervous system training

10:13 How heart brain coherence drives performance & resilience

21:17 What neurofeedback sessions actually look like in practice

29:30 How to integrate wearables research & real world results

• Watch it on YouTube: https://youtu.be/ZicF88MyGvk
• Full episode show notes: outliyr.com/241

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Do you have questions, thoughts, or feedback for us? Let me know in the show notes above and one of us will get back to you!

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Nick