Don MacDonald

Chiropractor, author, and co-creator of The MacDonald Safety Corridor Protocol, teaching chiropractors how to integrate Polyvagal Theory into modern chiropractic practice.

Chiropractic Brain Research with Dr. Heidi Haavik: Polyvagal Theory & Nervous System Insights

Chiropractic Brain Research with Dr. Heidi Haavik: Polyvagal Theory & Nervous System Insights

Dr. Heidi Haavik is back on the podcast for the second time in today’s episode. With a PhD in neurophysiology, Dr. Haavik is one of the most renowned researchers in chiropractic and is also the Founder of Haavik Research. During the episode, she discusses the latest research in chiropractic (including the most cutting-edge studies), how […]

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Dr. Don MacDonald and Brandi MacDonald teaching the Shoulder Pelvic Floor Connection seminar for chiropractors

The Shoulder–Pelvic Floor Connection: A Nervous System Lens on Pelvic Floor Health

By Dr. Don MacDonald & Brandi MacDonald | The Informed Chiropractor | Edmonton, Alberta If you have ever wondered why pelvic floor symptoms can feel “bigger than the pelvis,” you are not imagining it. One of the most common patterns we see in practice is this: people come in thinking they have a pelvic floor

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How to Adjust With Neurological Safety in Mind: The Soft Skills Chiropractors Aren’t Taught

Every chiropractor learns how to deliver an adjustment. Very few learn how to help a nervous system receive one.That is the real differentiator in our profession.Most chiropractors think better results come from changing technique, force, or speed. But what they are craving is connection, presence, and nervous system awareness. They want the missing piece. They

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Updating Stephenson’s 33 Principles: How Neuroscience Supports Chiropractic Today

There’s a moment every chiropractor has sooner or later.You’re standing in your practice, looking at a patient who just changed right in front of you, and you think, “There is no way this is just about joints.”The breath deepens.The eyes soften.The posture shifts.The whole room feels different.This is where chiropractic stops being mechanical and becomes

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What Chiropractors Need to Know About the Vagus Nerve: A Modern Guide

If you’ve been paying attention over the last few years, you’ve probably noticed something: the vagus nerve has become the “celebrity nerve” of the healthcare world. Everyone, from neurologists to mental health therapists to influencers on TikTok, is talking about vagal tone, regulation, breathwork, and inflammation.But here’s the truth chiropractors need to know:We’ve been working

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What Is Polyvagal Theory—and Why Should Chiropractors Care?

What Is Polyvagal Theory—and Why Should Chiropractors Care? You’ve probably heard the term “Polyvagal Theory” floating around more often in the last few years—especially in trauma-informed circles. But what exactly is it?And more importantly: what does it have to do with chiropractic care? The short answer?Everything. The Basics of Polyvagal Theory Polyvagal Theory was developed

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