Joining Dr. Don today is Dr. David Fletcher, a threepeat guest who is here to dive further into the polyvagal theory and heart rate variability. Dr. Fletcher is a chiropractic pioneer and the tools you can use to help track your patient’s inputs and outputs.
The pandemic changed many things, but importantly, it significantly affected the population and their primary autonomic responses. Dr. Fletcher talks us through how his tools track autonomic responses, distinguish between parasympathetic and sympathetic reactions, and interpret data points.
Dr. Don MacDonald is a chiropractor with 29 years in practice and co-founder of The Informed Chiropractor with his wife Brandi. He developed the MacDonald Safety Corridor Protocol and the pelvic floor protocol, and Brandi helped turn his ideas into the structure and framework they are today. He teaches chiropractors around the world how to adjust through a polyvagal lens, communicate chiropractic with clarity, and build a more regulated practice, without changing who they are. New to this? Start with his free six-video course.
Latest posts by Dr. Don MacDonald (see all)
- Why Patients Leave Care and the Conversation That Keeps Them: Communication in Chiropractic with Dr. Don and Brandi MacDonald - October 26, 2026
- Why the Pelvic Floor May Be the Missing Link in Polyvagal Chiropractic - October 25, 2026
- Trend Lines: The Chiropractic Communication Skill That Keeps Practice Members in Care - October 12, 2026
