Why Chronic Pain Persists & How To Retrain The Brain For Relief

If you've been living with chronic pain, you've probably asked yourself this question more than once.
"Why am I still hurting?”

Maybe you've tried physiotherapy, massage, medications, injections, chiropractic care, surgery, or countless exercise programs. Perhaps some helped for a while. Maybe others didn't help at all.
Eventually, many people begin to wonder if this is simply the way life is going to be.
If that sounds familiar, I want you to know two things.

First, your pain is real.

Second, there may be a piece of the puzzle that no one has ever explained to you.

We’ve Been Focusing on the Branches Instead of the Roots
Imagine standing in front of a large tree.
One branch represents your back pain.
Another represents migraines.
Another is poor sleep.
Another is fatigue.
Another is digestive issues.
Another is anxiety.
Another is brain fog.
Another is pain that seems to move from one area of your body to another.
Another is sensitivity to touch, sound, temperature or pressure.
Most of us spend years trying to care for the branches. We search for treatments for each individual symptom, hoping that if we can solve one problem at a time, we'll finally feel better.
Sometimes those treatments are incredibly important and helpful.
But what if all of those branches were connected to the same root system?
What if there was one underlying process quietly influencing many of the symptoms you've been trying so hard to manage?
Rather than treating each branch as a separate problem, we begin asking a different question: What is happening at the roots?

For many people living with stubborn persistent pain, that root is nervous system sensitization and it’s impact is felt throughout all our systems.
Why? Because the nervous system is constantly communicating with them.

What Is Nervous System Sensitization?

Your nervous system was designed to protect you.
When you sprain your ankle, cut your finger, or touch a hot stove, pain encourages you to slow down, pay attention, and protect the injured area while it heals.
That's exactly what we want.
But sometimes this remarkable protection system becomes too good at its job.
After months or years of pain, injury, illness, surgery, chronic stress, trauma, or repeated flare-ups, the nervous system can remain on high alert—even when the original injury has healed or no longer explains the amount of pain you're experiencing.
Think of it like the volume knob on your pain system has been turned up.
The pain is still very real.
The difference is that your nervous system has become more sensitive to danger and less efficient at recognizing safety.
This process is known in the scientific literature as central sensitization. I often use the term nervous system sensitization because it better describes what's happening and is easier to understand.

It's About More Than Pain

One of the biggest misconceptions about chronic pain is that it only affects pain.
Your nervous system helps regulate nearly every system in your body.
It influences your movement, sleep, digestion, immune system, energy levels, attention, emotions, and your body's protective responses.
When the nervous system becomes overprotective, it isn't unusual to experience:

- Pain that spreads beyond the original injury
- Pain that lingers longer than expected
- Sensitivity to touch, movement, temperature, sound, or light
- Frequent flare-ups
- Fatigue
- Brain fog
- Sleep difficulties
- Digestive issues
- Reproductive issues
- Fear of pain with movement

Let’s take a closer look at one of the symptoms - digestion.  The gut and brain are constantly communicating through the gut-brain axis. Many people with persistent pain also experience digestive symptoms, and conditions such as IBS frequently coexist with nociplastic pain. Researchers believe altered nervous system processing is one of several contributors.

Let’s look at another - Sleep. Persistent pain and sleep have a bidirectional relationship.
Poor sleep increases pain sensitivity and persistent pain disrupts sleep. Nociplastic pain commonly includes altered sleep.

And finally, movement. Persistent pain is associated with changes in our brain’s body maps (bodily representation), motor planning, movement confidence and protective movement behaviours like bracing and avoidance.

At first glance, these can look like unrelated problems.
But they may all be connected by the same underlying process.

Why Haven't More People Heard About This?

Pain science has changed dramatically over the past few decades.
For many years, persistent pain was viewed primarily through the lens of damaged tissues.
If your shoulder hurt, we looked at the shoulder.
If your back hurt, we looked at the spine.
Those things still matter.
But today we understand that pain is much more complex.
Your brain and nervous system are constantly evaluating information from your body, your environment, your memories, your stress levels, your emotions, and your previous experiences before deciding how much protection you need.
Pain is one of those protective outputs.
That's why two people can have the same MRI but very different pain experiences.
It's also why many people continue to hurt long after tissues have healed.

Understanding the nervous system doesn't replace traditional medical care.
It simply adds another important piece to the puzzle.

Here's the Good News

The nervous system is constantly changing.
This remarkable ability is called neuroplasticity.
If the nervous system can learn to become more protective...
it can also learn to become less protective.
This is one of the most hopeful discoveries in modern pain science.

How Do We Teach the Nervous System Something New?

Knowing why you hurt is incredibly important.
But understanding alone doesn't change the nervous system.
The next question becomes:

How do we help the nervous system become less protective?

One of the most effective ways is through repeated experiences that gently teach the brain and nervous system that movement and everyday activities are safe again.
Imagine walking through a forest with tall grass. As you walk forward, you look back to see the small indents you’ve created in the grass. It can feel like a lot of work on the first pass through the brush, clearing a path as you go. 
Walk that same trail every day and something begins to happen.
The trail becomes easier to follow. The path widens and becomes more discernible. 
Eventually, it becomes a clear path and a preferred route.
Your nervous system works in much the same way.
Over months or years, repeated pain experiences can create well-travelled protective pathways.
The exciting part is that those aren't the only pathways your brain can build.
Every time you have a safe movement experience, calm your nervous system, challenge an old belief about pain, or practice a new skill, you're helping create a new trail.
One that says:
"This is safe."
That's neuroplasticity.
Not changing overnight.
Not through willpower.
But through hundreds of small experiences that gradually reshape the way the nervous system responds.

One Powerful Tool: Graded Motor Imagery

One of the approaches I frequently use is called Graded Motor Imagery (GMI).
Although the name sounds technical, the idea is surprisingly simple.
Instead of asking a sensitive nervous system to jump straight into painful movement, we gradually activate the brain's movement networks in ways that feel safe. 
Think of it as teaching the brain before asking the body to do more.

Graded Motor Imagery includes three stages.

Step One: Left and Right Descrimination
The first stage involves looking at pictures of body parts and deciding whether you're seeing the left or the right side.
It sounds simple, but it tells us something fascinating about how the brain works.
Research has shown that people living with persistent pain are often slower and less accurate at recognizing the painful body part.
This isn't because they've forgotten their left from their right.
It's because the brain's internal map of that body part has become less precise.
Practicing left and right recognition helps sharpen those maps without provoking pain.

Step Two: Motor Imagery
The second stage involves imagining movement without actually moving.
For example, you might imagine reaching into a cupboard, climbing stairs, or turning your head.
Although your body stays still, many of the same brain regions involved in actual movement become active.
This gives the brain an opportunity to rehearse safe movement before asking the body to perform it.

Step Three: Mirror Therapy
The final stage uses a mirror to create the visual illusion that the painful limb is moving comfortably and easily.
The brain receives visual information suggesting that movement is safe, helping challenge its expectation that movement always equals danger.
For many people, this becomes another opportunity to build confidence and reduce protection.

Why Does This Work?
Pain doesn't simply happen after movement.
Your brain begins preparing for movement before your muscles ever contract.
It predicts.
It plans.
It asks,
"Is this safe?"
If years of pain have taught your brain that movement is dangerous, it may begin producing protection before movement even begins.
Graded Motor Imagery gently changes those predictions.
Instead of overwhelming the nervous system, it provides repeated evidence that movement can be safe.
This is neuroplasticity in action.

What Does the Research Tell Us?
Over the past two decades, Graded Motor Imagery has become one of the most studied neuroplastic approaches for persistent pain.
Research has shown it can:
Reduce pain intensity
Improve movement and daily function
Improve body awareness
Reduce fear of movement
Improve confidence during activity
Help normalize the brain's representation of the painful body part

The strongest evidence exists for conditions such as Complex Regional Pain Syndrome (CRPS) and phantom limb pain, where changes in the brain's body maps are well documented. Research is also encouraging for people living with persistent musculoskeletal pain, Fibromyalgia, migraines, (and more) when Graded Motor Imagery is combined with pain education, movement, and other nervous system retraining strategies.
Like any treatment, it isn't a magic solution or the right fit for everyone.
But it represents something incredibly hopeful.
The brain can change.

My Approach
People often ask me what I actually do.
I like to think of it in three simple steps.

Understand
First, we make sense of your pain.
When you understand why you hurt, fear begins to settle, and your nervous system starts receiving a very different message.

Retrain
Next, we gently retrain the nervous system using evidence-based approaches such as pain education, Graded Motor Imagery, pain reprocessing, movement, gradual exposure, pacing, and other neuroplastic strategies.
Every small success becomes another piece of evidence that says:
"You're safe."

Return to Living
Finally, we bridge the gap between knowing and doing. This is where the power of coaching comes into play.
Together, we build confidence, navigate setbacks, tweak your daily practice to suit your needs, and help you reconnect with the activities that matter most.
Because recovery isn't simply about reducing pain.
It's about getting your life back.

A Different Way of Looking at Chronic Pain

If you've been searching for answers and still don't understand why you're hurting, I hope this article has given you a different way of looking at your pain.
Perhaps the missing piece isn't another treatment aimed at another branch.
Perhaps it's understanding the roots.
When we begin calming an overprotective nervous system, we're not simply chasing symptoms.
We're addressing one of the underlying processes that can influence how pain is experienced.
My goal isn't simply to help you manage pain.
It's to help you understand it, retrain your nervous system, and return to a life that's bigger than your pain.
Because when your nervous system learns that you're safe, everything begins to change.

Before we wrap up, I want to leave you with this:

If your nervous system has learned to become more protective, it can also learn something new.
That does not mean your pain is imagined, and it does not mean change happens overnight. It means there may be more possibilities available to you than you have been led to believe.
Understanding sensitization is an important first step, but understanding alone is rarely enough. Real change comes from taking what you have learned and putting it into practice—slowly, consistently, and in a way that feels manageable for you.

Here’s what I’d like you to do.
Take a moment to think about what stood out most for you in today’s episode. Was it the idea of an overprotective nervous system? The hiking trail analogy? Or the possibility that movement can begin to feel safer again?
Then, ask yourself: What might be possible if I had a clear plan and the right support to put this into practice?
That is exactly why I created the 16-Week Change Pain Academy.
Inside the Academy, I guide you step by step through understanding pain, retraining an overprotective nervous system, building confidence in movement, managing pain flares, improving sleep, and gradually returning to more of the life you want to live.
This is not about pushing through pain or trying to fix one body part. It is about working with the whole person and helping you turn knowledge into practical, meaningful change.

To learn more about the 16-Week Change Pain Academy, head to pain2possibilities.com. You will also find podcast episodes, articles, videos, and free resources to help you continue learning.
Thank you so much for joining me today. I hope this episode has helped you better understand why pain can persist and, more importantly, why your story may not be finished yet.