The Experience Miracles Podcast

Unlocking Autism: The Vagus Nerve Connection

Jul 2, 2024

Vagus Nerve Dysfunction and Autism

Episode 27 — Experience Miracles Podcast | Host: Dr. Tony Ebel, DC, CACCP — Pediatric Chiropractor & Founder of PX Docs | Published: June 2, 2024 | Duration: 39 min

Key Takeaways

  • Autism is a multifactorial, multi-systems disorder rooted in nervous system dysfunction and dysautonomia — not a purely genetic, brain-based condition. The vagus nerve is the single connecting thread between every system affected: gut, immune, respiratory, motor, and brain.
  • Children with autism are neurophysiologically stuck in Sympathetic Dominance — a chronic fight-or-flight state — because their vagus nerve isn’t providing the parasympathetic counterbalance the brain and body need to regulate, rest, and heal.
  • The vagus nerve is 85% sensory and is the 10th cranial nerve — the longest of 12 and one of only two that branch directly from the brainstem into the upper cervical spine, thorax, and deep gut. When it’s offline, virtually every foundational biological system goes offline with it.
  • Every other autism intervention — diet, supplementation, ABA, detoxification — is limited in its effectiveness until the vagus nerve and autonomic nervous system are functioning first. The vagus nerve isn’t the only thing, but it must be the first thing.
  • Neurologically-Focused Chiropractic Care — assessed with INSiGHT scans including HRV, thermal, and EMG scans — directly stimulates and restores vagus nerve function, producing reported improvements in sleep, digestion, immune resilience, motor coordination, emotional regulation, and sensory processing.

What Is the Role of the Vagus Nerve in Autism?

Vagus nerve dysfunction is the single most important and most overlooked factor in autism. Autism is not a genetic brain disorder — it is a multifactorial, multi-systems neurophysiological condition, and the vagus nerve is the central thread connecting every system involved.

The vagus nerve is the 10th cranial nerve and the longest of the 12 cranial nerves. It is one of only two that branch directly from the brainstem and upper cervical spine, traveling down through the neck, thorax, and into the gut. Because the vagus nerve is 85% sensory, it continuously sends signals back up to the brain while also sending motor control signals back down to every major organ system. When it functions well, it acts as the body’s brake pedal — triggering parasympathetic rest, digestion, immune regulation, and emotional calm. When it’s injured or offline, the result is what parents see every day in children with autism: sleep problems, digestive dysfunction, chronic illness, stimming, sensory overwhelm, and behavioral dysregulation.

What makes this so clinically significant is that when the vagus nerve and autonomic nervous system are restored to function, improvements don’t come in isolation. Because this one nerve governs so many systems simultaneously, parents consistently report cascading improvements across sleep, digestion, immune resilience, motor tone, emotional regulation, and sensory processing — all from addressing this one foundational dysfunction first.

Autism Is a Multi-Systems Disorder Rooted in Nervous System Dysfunction [00:01:00 – 00:05:00]

Dr. Tony Ebel, DC, CACCP: What we now know unequivocally about autism is that it is a multifactorial, multi-systems disease — primarily rooted in deep nervous system dysfunction, dysregulation, and what is known as dysautonomia. The one thing that connects all those factors and all those systems together is the vagus nerve and the autonomic nervous system.

Multifactorial means there is not one singular cause of autism. Instead, there is what we call The Perfect Storm — a toxic load of issues that arises early in a child’s life and stacks up into an overwhelmed, dysregulated, dysfunctional neurophysiological system that eventually leads to an autism spectrum diagnosis.

The more severe and the earlier children were exposed to these perfect storm stressors, the more severe their case. Perhaps level three autism. The less severe those triggers were, perhaps they end up with a level one or level two case — but those children still struggle with sensory, sleep, digestive, and emotional regulation challenges.

We now know that autism is not just a genetic disorder that negatively impacts the brain. It’s a multi-systems challenge where not only the brain and nervous system are involved, but so is the gut, the digestive system, the respiratory and immune system, the inflammatory system, the endocrine system, the motor system. Children struggling with autism don’t just struggle with speech, socialization, cognition, and behavioral dysregulation — the hallmarks of the diagnosis. If you look deeper, they struggle with digestive dysfunction, constipation, repeated respiratory infections, immune dysregulation, systemic inflammation, endocrine disruption, and significant motor tone delays.

Simply put: nearly every single foundational biological system is off track, offline, and not working as well as it needs to be. This is where the vagus nerve comes into play.

What Is the Vagus Nerve — and Why Does It Matter? [00:05:00 – 00:09:00]

Dr. Tony Ebel: The vagus nerve’s two longest-standing nicknames are the “rest and digest” nerve and the “wandering” nerve. Both are accurate — but incomplete. The vagus nerve is the 10th cranial nerve, the longest of 12, and one of only two that leave the brainstem. It branches from that upper cervical, upper neck area — the most critical region of the entire nervous system — and travels down through the cervical spine, branches out across the thorax, and goes all the way into the gut.

It regulates the heart and lungs, helping slow them down. It goes to the eyes, the ears, and our social-sensory-emotional receptors. The vagus nerve is our brake pedal. Our rest, digest, and release system.

“The vagus nerve is the master key. It’s the key that doesn’t just unlock one or two doors to drug-free healing for your child.”

Because the vagus nerve is 85% sensory, it is primarily designed to send signals back up to the brain about what’s happening in the body. Your child who cannot perceive, regulate, and make sense of what’s going on in their environment because they’re locked in fight-or-flight? That’s because they’re missing vagus nerve tone and function.

We also now know — thanks to the work of Dr. Stephen Porges and polyvagal theory — that the vagus nerve isn’t just the rest-and-digest nerve. It’s our social-emotional-behavioral regulation system. It connects deeply to the immune system and endocrine system, regulates neurotransmitters like cortisol and adrenaline, and modulates systemic inflammation.

If you’re talking about gut health, you’re talking about the vagus nerve. If you’re talking about inflammation, you’re talking about the vagus nerve. If you’re talking about sensory processing, behavior, and brain development — you’re talking about the vagus nerve.

Autism as “Locked-In” Fight-or-Flight: The Sympathetic-Parasympathetic Imbalance [00:09:00 – 00:14:00]

Dr. Tony Ebel: Our sympathetic nervous system — the fight-or-flight side — is the system triggered excessively in autism. That is the overwhelm, overload, hyperactivity, impulsivity, stimming, stressed-out, can’t-sleep, can’t-rest, can’t-digest side of the nervous system. The other side God gave us is the parasympathetic — the counterbalance.

Without the vagus nerve, we would all have a resting heart rate of 180. We would all be wound up and stuck in anxiety, stuck in primal fight-or-flight stress mode. That is autism. Day to day, moment to moment, what is happening neurophysiologically in a child with autism is exactly that — they are stuck in it.

The original description of autism was made by psychiatrist Dr. Kanner in the 1950s, and that’s why it got labeled as a psychiatric, genetic, brain-based disorder. Seventy to eighty years later, the average pediatrician and medical neurologist still sees autism that way — and they miss what is right in front of them: it is a multi-systems neurophysiological disorder. More body-based than brain-based.

“Autism doesn’t begin in the brain. Autism ends up in the brain.”

It was originally described as “locked-in syndrome” — with the vagus nerve as the key to unlock it. Unlock that locked-in fight-or-flight system, and everything changes.

The vagus nerve also connects deeply to the immune system and endocrine system, regulating cortisol and systemic inflammation. So if you’ve looked into what’s really causing your child’s ongoing struggles and you’ve left the conventional pediatrician who dismissed every early warning sign — the colic, constipation, eczema, chronic ear infections, missed milestones — understand that those early signs are the signs of vagus nerve dysfunction.

What Vagus Nerve Dysfunction Looks Like in Infants and Children [00:14:00 – 00:18:00]

Dr. Tony Ebel: Vagus nerve dysfunction in an infant looks like an inability to sleep and soothe. The vagus nerve’s job is rest and digest — sleep and soothe. So a child with vagus nerve dysfunction — what we chiropractically call subluxation and nervous system dysregulation — is the child who is refluxy, who has gut issues that trigger constant crying, who is constipated, whose ears, sinuses, and immune system are compromised so they get sick over and over, and who then gets antibiotics that compound the problem further.

Whatever direction you want to take the autism conversation, the middleman is always the vagus nerve, the brainstem, and the nervous system.

You want their gut better? You need the vagus nerve online. You want their body less inflamed and their immune system stronger? You need the vagus nerve online. You want them to balance emotions, handle transitions, improve sensory processing, socialization, behavior? You need the vagus nerve online.

“Everything on that list — every diet change, supplement, detox, therapy — will be limited in its potential to help your child if the vagus nerve and autonomic nervous system isn’t online and doing its job first.”

These perfect storm triggers — prenatal distress, birth interventions, early antibiotic exposure, and toxin load — occur during the most sensitive, critical periods of brain and nervous system development. The vagus nerve is the great orchestrator of all neurodevelopment. When it gets knocked offline in those early windows, everything downstream gets delayed before it ever has the chance to come online.

Why the Vagus Nerve Must Come First — Before Diet, Supplements, or Therapy [00:18:00 – 00:23:00]

Dr. Tony Ebel: I want to be very clear here. I love the full list of interventions that autism Facebook groups, mom blogs, and biomedical websites put forward. I’m trained in them. I’ve applied them. Every single thing on that list has a role in helping your child. But every single thing on that list will be limited until the vagus nerve and autonomic nervous system are online first.

Once the nervous system is back online and functioning, the diet changes are going to be easier and work better. The supplementation, detoxification, and parasite cleanses are going to have more impact — because the nervous system needs to control and modulate the gut and immune system for those things to do their jobs. Everything you’re trying to do to regulate inflammation will be more potent and effective when the nervous system is functional.

The vagus nerve compared to the microbiome? The vagus nerve is more important — because it controls and regulates digestive motility, absorption, elimination, and inflammatory regulation. The vagus nerve compared to cognitive behavioral therapy, ABA, biofeedback, neurofeedback? Those are wonderful approaches. But vagus nerve activation will win out because it’s the foundational master key those other approaches are built on.

It isn’t the only thing. But it must be the first thing.

The Vagus Nerve’s Five Core Functions and Why Each Matters in Autism [00:23:00 – 00:29:00]

Dr. Tony Ebel: Let’s run through the core biological functions the vagus nerve controls — so you can see why getting this one thing working unlocks so much for your child with autism.

Number one: Sleep. The vast majority of children with autism take two hours to fall asleep instead of 20 minutes. They are both wound up and worn out at the same time — the hardest state from which to fall asleep. Even when they do sleep, they’re restless and dysregulated. You get the vagus nerve back online, you’re going to see improvements in sleep.

Number two: Respiration. The vagus nerve regulates respiratory function — pulmonary function, diaphragmatic action. It is essential to the body’s ability to even take a deep breath and regulate oxygenation. When parents try to teach their child deep breathing as a coping strategy, the vagus nerve is what has to be working for that strategy to land.

Number three: Digestion. This one runs deep. When the nervous system is stressed — what we call neurogenic gut issues — the first place it steals energy from is the gut. The gut is an enormous energy consumer. Vagus nerve function controls absorption (getting nutrients from food into the body), assimilation (sending those nutrients to where they’re needed for healing), and elimination and detoxification. Parents have often been told their child’s body can’t detox heavy metals or toxins and the liver or MTHFR is blamed. That’s barking up the right tree, but landing on the trunk, not the roots. The vagus nerve, branching from the brainstem down into the gut like an upside-down tree, is the root.

“You need the vagus nerve online to absorb them. You need the vagus nerve online to assimilate them. And you need the vagus nerve online to eliminate and detoxify what doesn’t belong.”

Number four: Immune function and inflammation. The vagus nerve connects to the NTS nucleus and directly regulates inflammation. Immune system resilience and inflammatory control are both dependent on vagus nerve tone.

Number five: Motor tone and coordination. Stimming, spasticity, toe walking, jaw clenching, biting, hand movements — these are signs of hypertonicity. The vagus nerve must be online for that tension to release. Weak core, poor coordination, and gross motor delays come from too much sympathetic dominance stealing energy from motor regulation.

Beyond those five: seizure control, motor tics, anxiety, speech and communication, brain development at every level — the vagus nerve is connected to all of it. It controls our resilience. It controls our variability — our adaptability. That is the key to orchestrating and harmonizing every other biological system in your child’s body.

How to Find Out If Your Child Has Vagus Nerve Dysfunction: INSiGHT Scans and Personalized Care [00:29:00 – 00:37:00]

Dr. Tony Ebel: Here’s the action step. If your child’s case history matches what we’ve talked about — if they went through perfect storm triggers and have these multifactorial challenges — and you’ve tried all the interventions and still haven’t found the foundational answer, the next step is to get into a PX Docs office for a deep-dive consultation and neurological assessment.

In our offices, we use INSiGHT scans — thermal scans, EMG scans, and HRV (heart rate variability). HRV is the most important of those, and the most visual. Heart rate variability directly measures vagus nerve tone and autonomic nervous system function. No other healthcare setting uses this technology the way we do, because no other framework looks this deeply into the nervous system as the root of what’s happening.

The process has three steps. First, the deep-dive case history — your PX Docs clinician will ask more questions, deeper questions, and more granular questions than any other doctor ever has. Through that process, the answers about your child’s nervous system story start to reveal themselves. Second, the INSiGHT scans tell you: is my child struggling with vagus nerve dysfunction, nervous system dysregulation, and subluxation? How severe? And exactly where in the nervous system are the stress patterns? Third, at the report of findings visit, you receive a personalized, customized care plan — built specifically for your child — with every adjustment designed to directly stimulate and restore vagus nerve and autonomic nervous system function.

This is not general chiropractic. This is not back pain and neck pain care. Neurologically-Focused Chiropractic Care directly provides input to the vagus nerve, to the central and autonomic nervous system. The entire goal of every adjustment is to get the nervous system regulated, functioning, and building resilience again.

What Parents Report After Neurologically-Focused Chiropractic Care [00:37:00 – 00:39:00]

Dr. Tony Ebel: In the initial stages of care, parents of children with autism consistently report: better sleep, improved bowel regularity, trying new foods, stronger immune response, less congestion, easier transitions, smoother emotional and behavioral regulation, calming of stimming, and improvements in gross and fine motor coordination.

You get this one thing working better — the vagus nerve — and you get everything in the body working better as a result. It’s not a treatment. It’s not a cure. God gave your child everything they need to get the gut, the immune system, and the brain back online. The vagus nerve is that master key to unlock them all.

“You get this one thing working better, the vagus nerve, and you get everything in the body working better as a result.”

If your child’s story is reflected in this episode, the next step is to find a neurologically-focused chiropractor through the PX Docs directory at pxdocs.com/directory.

Frequently Asked Questions

What is the connection between the vagus nerve and autism?

Autism is a multifactorial, multi-systems neurophysiological disorder, and the vagus nerve is the nerve that connects every affected system — gut, immune, respiratory, motor, and brain. According to Dr. Tony Ebel, when the vagus nerve is dysfunctional or offline due to early-life stressors like birth trauma or prenatal stress, every system it governs goes offline too. Restoring vagus nerve function addresses the root of the disorder rather than its individual symptoms.

What does vagus nerve dysfunction look like in a baby or young child?

In infants, vagus nerve dysfunction shows up as inability to sleep and soothe, reflux, gut issues, constipation, chronic ear infections, and immune system challenges. In older children with autism, it looks like sleep problems, sensory overwhelm, digestive issues, stimming, poor motor tone, difficulty with transitions, and behavioral dysregulation. These are all signs that the parasympathetic nervous system — governed by the vagus nerve — is not adequately counterbalancing the fight-or-flight sympathetic response.

Why doesn’t diet, supplementation, or ABA work as well as parents hope?

According to Dr. Tony Ebel, every intervention on the autism care list — diet, detox, ABA, OT, supplementation — has a role. But each one is limited in its effectiveness if the vagus nerve and autonomic nervous system aren’t functioning first. The nervous system controls and modulates gut absorption, immune regulation, and detoxification. When those systems are neurologically compromised, even the best interventions can’t reach their full potential.

How do chiropractors measure vagus nerve dysfunction?

PX Docs clinicians use INSiGHT scans — including HRV (heart rate variability), thermal scans, and EMG scans — to directly assess vagus nerve tone and autonomic nervous system function. HRV in particular is a direct, visual measurement of how well the vagus nerve is regulating the autonomic nervous system. This technology is paired with a deep-dive case history to build a complete neurological picture and a personalized care plan.

Can chiropractic care really help a child with autism?

Neurologically-Focused Chiropractic Care is not general spine care. It is specifically designed to provide direct neurological input to the vagus nerve and central nervous system, with every adjustment aimed at restoring autonomic regulation. Dr. Tony Ebel has applied these protocols with tens of thousands of children with autism and trained thousands of chiropractors in these methods. Parents commonly report improvements in sleep, digestion, immune resilience, sensory regulation, emotional control, motor coordination, and stimming — across multiple systems — because the vagus nerve governs all of them.

How do I find a PX Docs chiropractor near me?

Visit the PX Docs Practitioner Directory to find a neurologically-focused chiropractor trained in these protocols near you. Look for a provider who understands the vagus nerve, The Perfect Storm framework, and uses INSiGHT scanning technology to assess and track nervous system function.

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