Modern neuroscience has revealed how microbiome affects the brain's structure, chemistry, and function — knowledge that's transforming treatment approaches.
The Brain Regions Involved in Microbiome
Key brain areas implicated in microbiome include:
- Amygdala: The brain's threat-detection center becomes hyperactive in microbiome, triggering excessive fear and stress responses
- Prefrontal Cortex: Responsible for rational thinking and emotional regulation — its function is often impaired by microbiome
- Hippocampus: Memory and context processing; chronic microbiome can affect its volume and function
- HPA Axis: The stress hormone system that, when dysregulated, drives many physical symptoms of microbiome
Neurochemistry of Microbiome
Microbiome involves imbalances or dysregulation of key neurotransmitters including serotonin, dopamine, norepinephrine, and GABA — all targets of current treatments.
How Treatment Changes the Brain
Both therapy and medication produce measurable changes in brain function in microbiome. CBT, for example, has been shown to normalize amygdala reactivity.
Neuroplasticity and Microbiome
The brain retains its ability to change throughout life. This neuroplasticity means that with appropriate treatment and practice, the neural patterns underlying microbiome can genuinely change.