Rumination & Racing Thoughts: How Your Nervous System Fuels Overthinking | OVCS
Rumination & Racing Thoughts: How Your Nervous System Fuels Overthinking | OVCS
How to Stop Overthinking and Rumination: Why Your Nervous System Keeps You Stuck
Have you ever been exhausted, ready to sleep, and then suddenly your brain decides that 3:07 a.m. is the perfect time to replay a conversation from six years ago, worry about tomorrow, question a decision you made, or imagine everything that could go wrong?
- You tell yourself to stop thinking about it.
- You try to reason with yourself.
- You remind yourself that worrying will not change anything.
And yet, the thoughts keep coming.
If this sounds familiar, there is something important to understand:
Rumination is not a personality flaw.
It does not mean you are weak, overly sensitive, incapable of coping, or simply “bad at letting things go.”
Often, persistent overthinking and racing thoughts are connected to something much deeper: the way your brain and nervous system have learned to identify and respond to possible danger.
At Orchard Valley Counselling Services, we often help clients understand anxiety and rumination through a nervous-system-informed lens. Instead of asking, “Why can’t I stop thinking?” it may be more helpful to ask:
“What is my nervous system trying to protect me from right now?”
Try Mindfulness for Peace of Mind
What Is Rumination?
Rumination is the tendency to repeatedly think about the same concern, conversation, mistake, fear, or unanswered question without reaching a meaningful resolution.
It can sound like:
- “What if I made the wrong decision?”
- “Why did I say that?”
- “What if they are upset with me?”
- “I should have handled that differently.”
- “What if something bad happens?”
- “Why can’t I stop thinking about this?”
- “I need to figure this out before I can relax.”
Unlike productive problem-solving, rumination tends to move in circles.
You may spend hours thinking about the same situation but feel no closer to an answer. In fact, the longer the cycle continues, the more anxious, activated, frustrated, or emotionally exhausted you may become.
This is because rumination is not always happening solely at the level of thought.
Your body is participating too.
Why Overthinking Can Feel Impossible to Stop
Your brain is constantly trying to predict what might happen next.
From an evolutionary perspective, this makes sense. Human beings survived because our nervous systems became exceptionally good at detecting potential threats, remembering dangerous experiences, and preparing us to respond quickly.
The difficulty is that the brain does not always distinguish perfectly between:
“Something dangerous is happening right now”
and
“Something uncomfortable, uncertain, or emotionally important might happen.”
A common anxiety-rumination cycle may look something like this:
Your brain predicts a possible threat → your body becomes activated → you notice uncomfortable sensations → your mind interprets those sensations as evidence that something is wrong → the thought becomes more convincing → your body becomes even more activated.
And the cycle continues.
- Your heart may beat faster.
- Your stomach might tighten.
- Your chest may feel heavy.
- Your muscles tense.
- Your breathing becomes shallower.
- You feel restless or unable to settle.
Then your brain notices those sensations and thinks:
“See? I knew something was wrong.”
The physical response begins to feel like proof that the thought must be true.
Learn To Calm Your Nervous System
Your Nervous System Can Influence Your Thoughts
Many people assume that anxious thinking causes anxious feelings.
Sometimes it does.
But the relationship also works in the opposite direction.
Your physiological state can influence the types of thoughts your brain produces.
When the nervous system is relatively regulated, you may be better able to think flexibly, tolerate uncertainty, see multiple possibilities, and put problems into perspective.
When your body moves into a heightened state of threat or activation, your thinking can become more:
- repetitive
- rigid
- catastrophic
- self-critical
- threat-focused
- urgent
- emotionally reactive
Suddenly, something that seemed manageable at 2:00 p.m. can feel catastrophic at 3:00 a.m.
The situation may not have changed.
Your nervous system state has.
Why Racing Thoughts Often Get Worse at Night
Nighttime rumination is incredibly common.
During the day, work, conversations, family responsibilities, technology, errands, and other activities occupy your attention.
At night, much of that stimulation disappears.
Your brain finally has quiet.
Unfortunately, for an activated nervous system, quiet does not always feel peaceful.
It can create space for unfinished concerns, suppressed emotions, worries, memories, or unresolved questions to move to the foreground.
Fatigue also matters.
When you are exhausted, it can become harder to access the same cognitive flexibility and perspective you might have earlier in the day.
This is one reason the 3 a.m. mind should not always be trusted to solve tomorrow’s problems.
Why “Just Stop Thinking About It” Rarely Works
People struggling with anxiety and rumination are often given well-intentioned advice:
“Just let it go.”
“Stop worrying.”
“Think positively.”
“Distract yourself.”
“There’s nothing you can do about it tonight.”
Logically, you may already know all of this.
The problem is that logic and nervous-system safety are not the same thing.
You cannot always reason your way out of a response your body believes is protecting you.
When your nervous system detects a threat, the solution may not be to argue harder with your thoughts.
Sometimes the first step is helping your body receive safety cues.
A Bottom-Up Approach to Rumination
Traditional cognitive approaches often focus on identifying and challenging unhelpful thoughts.
That can be extremely useful.
However, some people discover that cognitive strategies work much better after their physiological arousal has decreased.
This is sometimes referred to as a bottom-up approach.
Rather than beginning with:
“How can I change this thought?”
you might begin with:
“What is happening inside my body while I’m having this thought?”
You may notice:
- pressure in your chest
- tightness in your throat
- clenched hands
- butterflies or nausea
- heat in your face
- shallow breathing
- tension through your shoulders
- an urge to escape
- restlessness
- numbness or disconnection
The goal is not to force these sensations away.
It is to notice them with curiosity and gradually help the nervous system experience greater safety and regulation.
Neuro-Somatic Mindfulness and Racing Thoughts
One approach receiving increasing attention is Neuro-Somatic Mindfulness (NSM).
Rather than focusing exclusively on changing the content of a thought, neuro-somatic approaches explore the relationship between attention, emotion, physical sensation, nervous-system activation, and patterns of protection.
The underlying principle is important:
A racing mind may sometimes be a symptom of an activated body.
When we work with the physiological state underneath the thought, the thought itself may begin to lose some of its urgency.
This does not mean ignoring genuine problems.
It means creating enough internal regulation that you can respond to those problems with greater clarity rather than from a state of alarm.
Try This When Your Mind Won’t Stop
The next time you notice yourself spiralling into repetitive thinking, experiment with moving your attention away from solving the thought immediately.
Start by noticing your surroundings.
Look around the room slowly.
Notice three or four objects.
Allow your eyes to land on something neutral or pleasant.
Then ask yourself:
What sensations am I noticing in my body right now?
Try describing the sensation without interpreting it.
Instead of:
“I’m anxious.”
Try:
“There is tightness across my chest.”
Instead of:
“Something is wrong.”
Try:
“My stomach feels tense and my breathing is shallow.”
Next, gently notice where your body is supported.
Feel your feet against the floor.
Notice the chair or mattress underneath you.
Allow your exhale to become slightly longer without forcing your breathing.
Then remind yourself:
“I am noticing activation. I do not have to solve everything while my nervous system is activated.”
The goal is not immediate relaxation.
The goal is helping your nervous system recognize that a thought does not automatically equal an emergency.
From “What’s Wrong With Me?” to “What’s Happening Inside Me?”
This can be one of the most meaningful shifts in anxiety treatment.
Instead of asking:
“Why am I like this?”
Consider asking:
“What is happening in my nervous system right now?”
Instead of:
“Why can’t I let this go?”
try:
“What does my mind believe it still needs to figure out to feel safe?”
And instead of:
“I need to stop thinking.”
try:
“I can help my body settle before deciding whether this thought needs my attention.”
That shift replaces self-criticism with curiosity.
Rumination May Be a Protection Strategy
Your mind is not necessarily trying to make your life miserable when it overthinks. It’s trying to protect you. It just doesn’t feel like it in the moment.
Often, it is attempting to prevent pain.
It may believe that if it thinks long enough, analyzes every possibility, predicts every outcome, or reviews every detail, it can protect you from making a mistake, experiencing rejection, being caught off guard, losing control, or getting hurt.
The strategy may no longer be helpful.
But its original intention may have been protective.
Understanding that can change how you respond to yourself.
You do not have to fight your mind.
You can begin teaching your nervous system another way to respond.
When Rumination Becomes a Sign You May Need Support
Occasional overthinking is part of being human.
However, counselling may be helpful when rumination or racing thoughts are:
- interfering with sleep
- affecting your concentration
- contributing to panic or anxiety
- creating ongoing physical tension
- affecting relationships
- interfering with work or school
- causing persistent self-criticism
- making decisions feel overwhelming
- connected to past trauma or difficult experiences
- preventing you from enjoying your everyday life
Therapy can help you identify what maintains the cycle and develop strategies that address both thought patterns and nervous-system regulation.
Counselling for Anxiety, Overthinking and Nervous-System Regulation in Kelowna & West Kelowna
At Orchard Valley Counselling Services, our counsellors work with individuals experiencing anxiety, chronic stress, emotional overwhelm, racing thoughts, burnout, life transitions, and difficulty regulating their nervous system.
Our approach is relational, strengths-based, and informed by evidence-based and trauma-informed therapies.
Depending on your individual needs, counselling may incorporate approaches such as CBT, DBT, somatic strategies, mindfulness, IFS-informed work, EMDR, ACT, solution-focused therapy, and nervous-system regulation.
We offer in-person counselling in Kelowna and West Kelowna, as well as virtual counselling throughout British Columbia.
You do not necessarily need to become better at arguing with your mind.
Sometimes the deeper work is helping your body learn:
“This thought is uncomfortable, but I am safe enough to experience it without immediately solving it.”
And when the nervous system begins to believe that, the mind often does not have to work quite so hard.
About Neuro-Somatic Mindfulness
This article was inspired in part by the concept of Neuro-Somatic Mindfulness (NSM) and the 3 AM Mind: A Live Practice Lab for Racing Thoughts with Dr. Fleet Maull.
Please note: Individuals interested in Neuro-Somatic Mindfulness should consult qualified training resources and practitioners for information about the specific NSM model.