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Ep. 32 — The Second Brain: How Your Gut Biome Influences Mood and Personality
It's one of the most exciting frontiers in neuroscience and psychology: the gut-brain axis. In this episode, Dr. Roger Hall explains why the gut is increasingly referred to as "the second brain" and details the profound impact our gut microbiome has on our mental and physical health.
Dr. Hall discusses the Enteric Nervous System, a separate and autonomous network of nerves in our gut that communicates directly with our brain via the vagus nerve. He explains that humans are symbiotic organisms, hosting more bacterial cells than human cells, and that these bacteria play a crucial role in everything from digestion to serotonin production. The conversation covers how diet shapes this internal ecosystem and how changing our gut biome can lead to changes in mood, weight, and even core personality traits
In This Episode, You Will Learn:
- The function of the Enteric Nervous System and its role as our "second brain."
- How the vagus nerve creates a direct communication superhighway from the gut to the brain, with 90% of signals flowing upstream.
- The critical role of gut bacteria in digestion and the production of key neurotransmitters like serotonin.
- The difference between probiotics (beneficial bacteria) and prebiotics (food for the bacteria).
- How our initial gut biome is inherited from our mothers at birth, creating a link to our ancestral and cultural diets.
Resources Mentioned:
- Enteric Nervous System
- Vagus Nerve & The Gut-Brain Axis
- Gut Biome / Microbiome
- Probiotics & Prebiotics
- Fecal Transplants
Send us a text
Support the show
Thank you for tuning in to this episode of Second Thoughts with Dr. Roger Hall!
If you enjoyed today's insights, don't forget to subscribe for more content on leadership, productivity, and personal growth. Share this episode with friends, colleagues, or anyone who could benefit from these powerful strategies.
🎧 Listen & Subscribe: Available on Apple Podcasts, Spotify, and all major platforms.
🌐 Connect with Dr. Hall: Visit drrogerhall.com for resources and more.
📧 Have a question? Submit it for a chance to be featured in a future episode!
Follow me on socials:
X - @DoctorRogerHall
Facebook - @Roger Hall
Instagram - @DoctorRogerHall
Linkedin - @Dr Roger Hall
Youtube - @DoctorRogerHall
Rumble - @SecondThoughts
View all episodes
By Roger HallIt's one of the most exciting frontiers in neuroscience and psychology: the gut-brain axis. In this episode, Dr. Roger Hall explains why the gut is increasingly referred to as "the second brain" and details the profound impact our gut microbiome has on our mental and physical health.
Dr. Hall discusses the Enteric Nervous System, a separate and autonomous network of nerves in our gut that communicates directly with our brain via the vagus nerve. He explains that humans are symbiotic organisms, hosting more bacterial cells than human cells, and that these bacteria play a crucial role in everything from digestion to serotonin production. The conversation covers how diet shapes this internal ecosystem and how changing our gut biome can lead to changes in mood, weight, and even core personality traits
In This Episode, You Will Learn:
- The function of the Enteric Nervous System and its role as our "second brain."
- How the vagus nerve creates a direct communication superhighway from the gut to the brain, with 90% of signals flowing upstream.
- The critical role of gut bacteria in digestion and the production of key neurotransmitters like serotonin.
- The difference between probiotics (beneficial bacteria) and prebiotics (food for the bacteria).
- How our initial gut biome is inherited from our mothers at birth, creating a link to our ancestral and cultural diets.
Resources Mentioned:
- Enteric Nervous System
- Vagus Nerve & The Gut-Brain Axis
- Gut Biome / Microbiome
- Probiotics & Prebiotics
- Fecal Transplants
Send us a text
Support the show
Thank you for tuning in to this episode of Second Thoughts with Dr. Roger Hall!
If you enjoyed today's insights, don't forget to subscribe for more content on leadership, productivity, and personal growth. Share this episode with friends, colleagues, or anyone who could benefit from these powerful strategies.
🎧 Listen & Subscribe: Available on Apple Podcasts, Spotify, and all major platforms.
🌐 Connect with Dr. Hall: Visit drrogerhall.com for resources and more.
📧 Have a question? Submit it for a chance to be featured in a future episode!
Follow me on socials:
X - @DoctorRogerHall
Facebook - @Roger Hall
Instagram - @DoctorRogerHall
Linkedin - @Dr Roger Hall
Youtube - @DoctorRogerHall
Rumble - @SecondThoughts