Episode 6: Concussion and Pathophysiology
Dr. Musnick explains concussion and traumatic brain injury mechanisms, from neural shearing, excitotoxicity, neuroinflammation, oxidative stress, hypoxia, and blood-brain barrier disruption to persistent symptoms and recovery pathways.
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💡Key takeaways
- 1Concussion care should go beyond simply ruling out a brain bleed and telling someone to rest.
- 2Brain injury mechanisms can include structural injury, neural shearing, excitotoxicity, neuroinflammation, oxidative stress, hypoxia, and blood-brain barrier disruption.
- 3Persistent symptoms may involve brain autoimmunity, hormone and pituitary effects, vagus nerve dysfunction, mitochondrial dysfunction, protein folding abnormalities, and gut microbiome changes.
- 4Brain fog, headache, dizziness, emotional instability, fatigue, sleepiness, and brain-based fatigue can persist even when the person did not directly hit their head.
- 5The episode lays the mechanism foundation for future concussion recovery conversations and does not replace individualized medical evaluation.
Show notes
Why concussion needs more than rest
Dr. M explains why concussion evaluation should not stop at ruling out bleeding or major structural danger.
The episode focuses on the functional medicine mechanisms that can keep symptoms active after a head injury.
What happens in the brain
Mechanisms discussed include neural shearing, excitotoxicity, neuroinflammation, oxidative stress, hypoxia, blood-brain barrier disruption, brain autoimmunity, hormone dysfunction, pituitary involvement, vagus nerve dysfunction, mitochondrial dysfunction, protein folding abnormalities, neurogenesis, synaptogenesis, and gut microbiome changes.
Symptoms that can persist
Dr. M connects the mechanisms to symptoms such as brain fog, headache, dizziness, emotional instability, fatigue, sleepiness, and brain-based fatigue.
He also notes that concussion-like injury can occur even when someone does not directly hit their head.
Foundation for recovery discussions
This episode sets up later conversations on how to address concussion recovery pathways.
Listeners are reminded to use personalized medical care for diagnosis, treatment, testing, supplements, and return-to-play decisions after head injury.