Modern neuroscience has revealed how long covid affects the brain's structure, chemistry, and function — knowledge that's transforming treatment approaches.
The Brain Regions Involved in Long Covid
Key brain areas implicated in long covid include:
- Amygdala: The brain's threat-detection center becomes hyperactive in long covid, triggering excessive fear and stress responses
- Prefrontal Cortex: Responsible for rational thinking and emotional regulation — its function is often impaired by long covid
- Hippocampus: Memory and context processing; chronic long covid can affect its volume and function
- HPA Axis: The stress hormone system that, when dysregulated, drives many physical symptoms of long covid
Neurochemistry of Long Covid
Long Covid 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 long covid. CBT, for example, has been shown to normalize amygdala reactivity.
Neuroplasticity and Long Covid
The brain retains its ability to change throughout life. This neuroplasticity means that with appropriate treatment and practice, the neural patterns underlying long covid can genuinely change.