What You'll Master

✓ How Spinal Joints Feed the Brain

The tonic system provides constant baseline firing to the brain — this is afferentation, the "voltage" that keeps the nervous system potentiated. When joints sit out of neutral, that input decreases and becomes distorted. Each subluxation contributes to cumulative deafferentation — less signal, and less accurate signal, reaching the brain.

✓ Why Proprioceptive Errors Drive the Sympathetic System

When the brain receives proprioceptive feedback that doesn't match what it expected — dysafferentation — it interprets this as a danger signal and drives the sympathetic system. This explains the patient who can't sleep, can't digest well, feels anxious without clear cause, and never fully recovers. The nervous system is stuck in stress mode because the signal driving it hasn't been resolved.

✓ What the Autonomic System Is Actually Doing

The parasympathetic system draws energy in — digestion, recovery, rebuilding. The sympathetic system expresses energy outward — heart rate, blood pressure, muscle tension, vigilance. These should shift in response to the environment. When dysafferentation keeps the danger signal on, the sympathetic system dominates and parasympathetic function is suppressed — continuously.

✓ The Pupils as a Window Into Autonomic State

The pupils respond directly to autonomic balance — their reactivity, range, and holding capacity reveal whether parasympathetic function is intact or being suppressed. You'll learn how pupillary assessment gives you an objective window into the state of the nervous system, and how that window responds when joint dysfunction is resolved.

Who Should Attend

• Practitioners whose patients present with systemic complaints — sleep disruption, digestive issues, anxiety, fatigue — alongside their musculoskeletal findings

• Clinicians who want to understand the neurological mechanism connecting joint dysfunction to whole-body consequences

• Practitioners looking for an objective way to assess autonomic state and verify treatment effect

• Students and recent graduates who want to build a neurologically-informed framework from the ground up

What Makes This Different

Most clinical frameworks treat musculoskeletal and systemic complaints as separate problems requiring separate solutions. The neck pain is one thing. The poor sleep, the digestive issues, the feeling of never being able to fully relax — those are something else entirely.

This webinar gives you the neurological framework to understand why they're connected. When proprioceptive feedback from the spine doesn't match what the brain expects, the brain treats it as a threat — and responds accordingly. The autonomic consequences aren't incidental. They're a predictable result of a system that can't resolve its own danger signal.

You'll leave with a clearer model for the systemic patient — and an introduction to an assessment tool that makes the autonomic state directly visible, and that responds measurably when the underlying dysfunction is corrected..

About the Presenter

Dr. Russ Hornstein is a Chiropractic Neurologist with 31 years of experience and is highly dedicated to the study of spinal biomechanics and its impact on the nervous system. He developed the 'Adjusting to Neutral' HVLA method, which is proving to effectively resolve joint dysfunction with precision, speed, and patient comfort. Dr. Hornstein practices in Lisbon, Portugal, and teaches this technique across Europe, the U.S. and Africa.