Understanding our Nervous System

Traffic light analogy of the Autonomic Nervous System

​Understanding and tapping into our innate healing capacity and regulation of the nervous system is key for getting out of pain and improving function.  Many people have learned in school that the brain and the spinal cord are the central processing and relay centers, and the peripheral nerves take off from the spinal cord to drive the movement of our muscles.  More elusive in understanding is the part of our peripheral nervous system that goes to our smooth muscle and organs: the autonomic nervous system.  The autonomic nervous system keeps us alive.  It is important for basic metabolic functions such a breathing, heart rate, digestion, hormone regulation, sleep/wake cycles, sexual response, immunity, repair & regeneration, etc.

The Autonomic Nervous System: Polyvagal Theory

In 1994, Professor Stephen Porges proposed the Polyvagal Theory.  In this seminal work he describes the autonomic nervous system in more detail.  Rather than a 2 part system balance of sympathetic "fight or flight" and parasympathetic "rest or digest", he acknowledges the evolutionary nervous system development that brings the humaneness into being human such as connection, social engagement, relationship,  and the ability to have team work and community.  One of the best explanations of the Polyvagal Theory that I have heard is by Stephen's son, Seth.  I have posted the video below.  Please watch, and then watch again.

Polyvagal analogy of the traffic light:

• Green is the safety zone: our social engagement system.  our heart rate slows, digestion activates, facial muscles are responsive,  eyes are soft and able to make contact, hearing is turned on.
• Yellow is the danger zone:  our heart rate increases, pain increases, muscles are mobilized for movement, flat facial affect, the middle ear is turned off in order to hear lower threat tones.
• Red is the life threat zone: our system goes into freeze/immobilization.  This zone leads to metabolic shut down.

A healthy autonomic nervous system is fluid, bouncing between the green and yellow zone.  

Nervous System Regulation: The Still Face Experiment

As humans we are wired to connect.  We need to have connection and safety to build a healthy nervous system. If you watched Seth's video above, you now have a deeper understanding of this.  Because the nervous system is so subtle, and because many of us have had "bad stuff/trauma" happen to us, (we can be stuck in a freeze state or amped up into hyperarousal, or stuck in both states) we don't always "get" this understanding of how important it is to heal at a nervous system level.  The still face experiment exemplifies what happens to the nervous system and subsequent behavior when connection and safety is withheld.  

The above video can be hard to watch.  In just 3 minutes of non responsiveness from the mother, the child turns her head and body away; she withdraws with a hopeless expression on her face.  To use the traffic light example, in the beginning we see activation of the green light, then mom becomes non responsive, the child escalates to the yellow light and when mom continues not to respond, the child collapses into the red light.  Fortunately, this was an experiment, and mom comes back to engage and repair to green light.

Now what?  How does this apply to me?

Our nervous system impacts our entire well being: emotionally, relationally, mentally and physically.  Common signs of dysregulation: depression, anxiety, numbed out, brain fog/can't concentrate, procrastination/resistance, chronic pain, gut issues, headaches, severe PMS, autoimmune disorders, hormone issues, pain, etc.  You may also find yourself continually getting injured or wanting to take your exercise to the next level and you end up hurting your back (knee, shoulder, foot, etc), or you keep going to the chiropractor and they tell you that you aren't holding your adjustments or you look in the mirror and notice that your body rests in rotation (one shoulder is higher or your head slightly tilts, etc).   We all have layers and layers of "stuff" that has happened to us over the years, some more than others.  By acknowledging that this "stuff" is held in our nervous system (and thus, our organs and connective tissues) we can start to become more vital by reconnecting & regulating our nervous system.  As Seth mentions in the video above, breath is key to mediating the autonomic nervous system.  In my next blog I will explore some breathing options to facilitate a relaxation response. 
If you are interested in learning how to be more ALIVE in your body, there are some great books and online programs available to get started:

• Somatopia: this program is super affordable. It is a good place to start if you are completely new to the mind- body connection.  It goes over some of the foundational concepts and beginning techniques.
• 21 Day Nervous System Tune Up: this is a more thorough self study program that offers a great Facebook support group.  It has explanations of the neuroscience and plenty of neurosensory exercises to keep you busy.
• Crappy Childhood Fairy: to be honest, I haven't taken this course, but I am impressed by what I see on her videos.  She is not a therapist, or a health care provider, she is someone who had a "crappy childhood" and spent years in therapy.  It wasn't until she started working with the nervous system dysregulation that she started to heal.  Her program is based on the tools that she used to heal.
• "The Body Keeps the Score", Bessel Van Der Kolk
• "Healing Trauma: A Pioneering Program for Restoring the Wisdom in Your Body", Peter Levine

Susan McLaughlin is a physical therapist who specializes in the management of pelvic floor and orthopedic dysfunctions. She is the owner of ALIGN integration|movement in Salt Lake City, UT.  Helpful tips and other self care strategies can be found at www.alignforhealth.com.