Long Covid Podcast 207 - Dr Nathan Keiser - Stop Chasing Labels, Start Fixing Mechanisms
Mar 11, 2026
Dr Nathan Keiser, a chiropractic neurologist who treats autonomic dysfunction and neuroplastic rehab, explains a mechanism-first way to approach post-viral illness. He highlights cerebral perfusion, autoregulation, structural vascular traps, and how concussion rehab lessons translate. Short, targeted micro-dosing, breathing/CO2 tests, and using sleep for recovery are featured as practical paths to rebuild capacity.
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Diagnose Mechanisms Not Labels
- Treat diagnoses as maps to mechanisms rather than final labels to find targeted fixes.
- Nathan Keiser focuses on measurable neural and vascular departures from health so tools match the exact problem.
Brain As A Networked Learning System
- The brain is a multisensory, networked system like a rail or power grid, not a single black box.
- Keiser compares relearning brain function to training an instrument: targeted, incremental sensory-motor practice builds durable plasticity.
Concussion Patients Came Back To Life
- Keiser observed athletes after concussions who felt "not themselves" and showed measurable brain and state changes.
- He recounts patients regaining mood, grooming, and purpose as neural function recovered.