Dr Nathan Keiser

Serving patients with debilitating neurological symptoms #POTS #concussion #dysautonomia

Most approaches to autonomic dysfunction try to force blood out of the legs. Compression, fluids, meds—helpful short-term. But they’re often compensations, not corrections. Better question: why isn’t the system regulating blood flow properly in the first place? #dysautonomia #chronicillness #POTS

Deep Dive Q&A: All About Dysautonomia x.com/i/broadcasts/1…

Not all “intensive” programs are equal. More sessions doesn’t mean better results—especially if the approach hasn’t changed. Intensity can amplify outcomes… but only if the strategy is actually targeting what’s driving the problem. #POTS #MECFS #dysautonomia #chronicillness

We’re seeing less testing because “it doesn’t change treatment.” But when you stop measuring the system, you miss who could improve. Not testing doesn’t simplify care— it limits access to it. #POTS #dysautonomia #cardiology #patientcare

To understand a system, you have to challenge it. If an input makes things worse → noise. If it improves things → signal. Don’t build from breakdown. Build from what the brain can process. #dysautonomia #POTS #MECFS

Neck tension isn’t just “tight muscles.” It can reflect how the brain is trying to create stability. Posture, movement, and even blood flow regulation are tied into this system. It’s not just structural—it’s neurological. #POTS #dysautonomia #chronicillness #neurology

59% couldn’t complete the standard POTS exercise protocol. Up to 58% show cerebral blood flow abnormalities. If the system isn’t regulated, pushing harder may not be the solution. 👉 Start with the #POTS Roadmap (link in bio) #levineprotocol #dysautonomia #chronicillness

Mouth taping isn’t a universal fix. Nasal breathing during sleep is ideal—but if you can’t do it comfortably, there’s likely a reason. Instead of forcing it, ask: what’s preventing proper airflow in the first place? #insomnia #SleepHacks #healthinsights

The Diagnosis Trap: Why Syndrome Labels Stop the Search for Cures x.com/i/broadcasts/1…

#Betablockers target the “gas pedal” (sympathetic drive). But many cases of tachycardia come from the “brakes” failing (parasympathetic withdrawal). If you don’t match the mechanism, outcomes may be limited. 👉 Start with the #POTS Roadmap (link in bio)

“Is it too late?” Not necessarily. Even long-standing issues can improve function. And improving function today can change your trajectory moving forward. It’s not about perfection—it’s about keeping systems working better, for longer. #POTS #Dysautonomia #MECFS

Symptoms worse in the morning? Look at your night. Breathing patterns, sleep position, and overnight blood flow regulation can shape how you feel when you wake up. Morning symptoms often start the night before. #dysautonomia #bloodflow #POTS

She wasn’t misdiagnosed because it was complicated. She was misdiagnosed because people stopped looking. “It's in your head” shouldn’t be the end of the conversation—it should be the beginning of deeper investigation. Patients aren’t the problem. The lens is. #MedicalGaslighting #PatientAdvocacy

61% of POTS patients show reduced brain perfusion—even lying down. So maybe this isn’t just a “standing problem.” It’s a regulation problem. Different question → different approach. 👉 Download the POTS roadmap (link in bio) #POTS #dysautonomia #brainhealth

If you need a breathing technique all day just to feel stable, that’s not optimization—it’s compensation. Your body should regulate breathing automatically. The real question: What’s interfering with that? Solve that → everything changes. #breathing #nervoussystem #POTS

#Hypocapnia isn’t just a data point. It can drive cerebral blood flow changes—or reveal a deeper issue. The real question isn’t “is it the problem?” It’s: what’s causing it? #dysautonomia #chronicillness

Ask Me Anything: Live Clinical Q&A (Starts at 8 PM ET) x.com/i/broadcasts/1…

She was 21. 7 medications. Couldn’t eat. Daily nausea. Treated as a GI problem. But the issue wasn’t her gut—it was control. When brain-body signaling improved, everything normalized. Stop chasing symptoms. Start asking better questions.

#SIBO isn’t just about bacteria—it’s about environment. When pH, blood flow, and neural signaling shift, the gut becomes a place where the wrong organisms can thrive. So the real question isn’t just “how do we kill it?” It’s “why did it grow?” #functionalneurology #gutbrainaxis

Most “hypermobility” isn’t just loose ligaments. #Hypotonia (low muscle tone) can mimic it—and those same brain circuits regulate blood flow + cardiac output. This is why symptoms show up when you’re upright. #EhlersDanlos #hypermobility