Cymbiotika Summer School Ep. 4: The Gut-Brain Axis
Did you know there's a secret conversation happening inside your body?
You’ve probably heard it! Think of the last time you’ve had a “gut feeling.” Maybe you’ve had to “go with your gut” when making a decision or have felt butterflies in your stomach when feeling nervous. You’re likely getting signals from an unexpected source: your gut, also known as your second brain!
This, my friends, all stems from the gut-brain axis. This intricate communication network links our digestive system with our central nervous system, and it controls a lot more than you think!
The gut-brain axis is a fascinating connection that links our gut and brain, influencing everything from mood to mental clarity. This intricate system helps regulate our emotions–thanks to neurotransmitters like serotonin–and boosts our immune system by maintaining a healthy gut microbiome.
What Is the Gut-Brain Axis?
The gut-brain axis is a two-way communication system between the gastrointestinal (GI) tract and the brain. It involves complex interactions between the nervous, endocrine, and immune systems and the gut microbiota. The vagus nerve, a major component of this axis, acts as a superhighway, transmitting signals between the gut and the brain.
At the heart of this connection lies the gut microbiome, a diverse community of trillions of microorganisms residing in our intestines. These bacteria and other microbes play a crucial role in various bodily functions, including digestion, immune response, and even the production of neurotransmitters.
One of the critical neurotransmitters influenced by the gut microbiome is serotonin. You might know this as the "happy chemical." With approximately 95% of serotonin produced in the gut, this connection is essential for regulating mood, sleep, and appetite.
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