Your Nervous System: The Hidden Superhighway Running Your Life
- Dr Anupa Dharamsi
- Oct 30, 2025
- 7 min read
If you've ever wondered how your body knows what to do — how you move, heal, breathe, and even feel — it all comes back to one thing: your nervous system.
It's the control centre and communication network running your entire body. Every second, billions of tiny electrical messages travel through it, helping you adapt to your environment, respond to stress, and hold your balance.
This is the lens I look through with every patient who walks into my clinic. I'm not just working with a sore neck or a stiff lower back — I'm working with the communication system underneath it. When that system is working well, I find everything else tends to follow.
So, What Exactly Is the Nervous System?
Think of your nervous system as your body's master communication line. It's made up of two main parts:
The Central Nervous System (CNS) — your brain and spinal cord, which process information and make decisions.
The Peripheral Nervous System (PNS) — all the nerves that branch out from your spine to the rest of your body, carrying messages to and from the brain.
Together, these two systems form the backbone (pun intended) of how you function. Your brain and spinal cord send signals through your nerves to control muscles, organs, and glands — while those same nerves send messages back about what's happening in your body.
Whether you're breathing, digesting food, or catching yourself from a stumble, your nervous system makes it happen — usually without you ever noticing it's working.
How It Works — The Three Steps of Communication
Your nervous system has three main jobs:
Receive information — from your senses, muscles, and organs.
Process it — your brain and spinal cord decide what needs to happen next.
Respond — nerves send instructions back out, telling your body how to move or react.
Here's an example I like to use with patients: if you accidentally touch a hot pan, your hand pulls away before you even feel the burn. That's your spinal cord working faster than conscious thought to protect you — it doesn't wait for your brain to weigh in.
Every part of your health, from how your muscles contract to how your heart beats,
depends on this constant back-and-forth communication running cleanly.
The Two Sides of Your Autonomic System
You've probably heard of "fight or flight" and "rest and digest." These are the two main modes your body shifts between automatically through what's called the autonomic nervous system.
The Sympathetic System (Fight or Flight): Kicks in when you're under pressure. Your heart rate speeds up, muscles tighten, and your body gets ready for action.
The Parasympathetic System (Rest and Digest): Your recovery mode — the calmer state that allows digestion, healing, and repair to actually happen.
Both are necessary. The problem is, most of the patients I see are spending far too much time stuck in "fight or flight" — even when nothing dangerous is actually happening.
Over time, this shows up as tight muscles, tension headaches, poor sleep, or digestive issues that don't have an obvious trigger.
A significant part of what I do in the room is help your body find its way back to that parasympathetic state — not by forcing relaxation, but by removing the interference that's keeping your nervous system on high alert.
Why the Spine Matters So Much
Your spinal cord runs through the centre of your spine, protected by 33 movable bones called vertebrae. Between each one, nerves branch out to every part of your body — muscles, organs, skin, everything.
When a spinal joint isn't moving the way it should, it can change how those nerves send and receive information. I think of it less as a "block" and more as static on the line — the signal is still getting through, but it's distorted. That static can show up as tension, restricted movement, or changes in how certain systems function.
When I adjust the spine, the goal isn't to "crack" a joint for the sake of it — it's to restore clear communication through the nervous system. That's what allows your body to self-correct, regulate, and heal the way it's designed to.
What You Might Notice When Your Nervous System Is Out of Balance
When communication through the nervous system isn't clear, you might notice things like:
Recurring neck or back pain
Headaches or dizziness
Fatigue or trouble concentrating
Muscle tension or unexplained weakness
Digestive changes
Feeling "stuck" in stress mode — wired but tired, or unable to properly switch off at night
These aren't random. They're signs your body is working hard to adapt to something — old injuries, chronic stress, or postural patterns — and struggling to fully reset. The encouraging part is that the nervous system is remarkably capable of recovery once it gets the right input.
What Science Says About the Nervous System
Research continues to uncover how deeply the nervous system is linked to nearly every part of health:
Neuroplasticity — your brain and spinal cord can reorganise and adapt based on what you do, think, and feel. Movement, breathwork, and manual care all influence this adaptability.
Autonomic balance — chronic stress and poor posture have been shown to disrupt the balance between "fight or flight" and "rest and digest," affecting sleep, digestion, and mood.
Sensory-motor integration — healthy spinal movement improves the way your brain interprets signals from your body, supporting balance, coordination, and how pain is perceived.
Your spine and nervous system don't work as separate systems — they're two parts of one living, adaptive network.
How Chiropractic Care Supports Nervous System Health
Chiropractic adjustments help remove interference and improve spinal mobility, which allows clearer communication between your brain and body. It's both a structural shift and a nervous-system shift happening at the same time — that combination is why the effects tend to reach further than the specific joint being worked on.
After an adjustment, many of my patients describe feeling lighter, calmer, or more connected to their body. Others notice deeper sleep that night, sharper focus the next day, or a gradual easing of pain and stiffness they'd stopped expecting to change.
This isn't a mystery — it's physiology. When nerve signals flow freely, your body can do what it was built to do: heal, regulate, and adapt.
If you want to see how this connects to what you eat and supplement with, I've written about how magnesium supports nervous system regulation, and how vitamin D and omega-3s fit into the same picture.
Everyday Tips to Support Your Nervous System
Here are simple ways to support your nervous system between visits:
Move often. Gentle stretching, walking, or yoga helps maintain healthy nerve input.
Breathe deeply. Slow, steady breathing directly activates your calming (parasympathetic) response — it's one of the few conscious ways you can influence this system on demand.
Sleep well. This is when your brain and body do most of their repair and rebalancing work.
Eat whole foods. Nutrients like magnesium, omega-3s, vitamin D, and B-vitamins support nerve health from the inside out.
Manage stress. Mindfulness, time outdoors, or simply switching off devices before bed all give your nervous system permission to downshift.
Small, consistent habits go a long way toward helping your nervous system stay balanced — the care I provide in-clinic and what you do in daily life work together, not separately.
Frequently Asked Questions
What is the nervous system, in simple terms? Your nervous system is your body's communication network — made up of your brain, spinal cord, and the nerves branching out to every part of your body. It controls everything from movement and digestion to how you respond to stress.
What's the difference between the sympathetic and parasympathetic nervous system? The sympathetic system is your "fight or flight" response, activated under stress or perceived threat. The parasympathetic system is your "rest and digest" mode, responsible for healing, digestion, and recovery. Most people need more time in the parasympathetic state than modern life tends to allow.
Can chiropractic care actually affect the nervous system? Yes. Spinal joints that aren't moving well can distort the signals travelling along nearby nerves. Chiropractic adjustments aim to restore normal joint motion, which supports clearer communication between the brain and body.
What are signs my nervous system might be out of balance? Common signs include recurring tension or pain, poor sleep, fatigue, trouble concentrating, digestive changes, and a general feeling of being "stuck" in stress mode even when nothing acute is happening.
How can I support my nervous system at home? Regular movement, deep breathing, consistent sleep, whole-food nutrition, and stress management all support healthy nervous system function between chiropractic visits.
In Summary
Your nervous system is the thread connecting everything — body, mind, and energy. It's how you sense, respond, and adapt to the world around you.
When your spine moves well, when your breath is calm, and when your body feels supported, your nervous system thrives. That's when patients tell me they notice more than just less pain — they feel more like themselves.
Ready to Support Your Nervous System?
If you've been feeling tense, tired, or just not quite balanced, it might be time to give your nervous system the care it needs. I work with patients across Māngere and South
Auckland who are ready to move beyond quick fixes and get curious about what's actually going on underneath their symptoms.
My care is about more than adjustments — it's about helping your body reconnect, regulate, and heal.
Book your appointment to get your nervous system back in sync, or take the Nervous System Regulation Quiz if you're not sure where to start.
About the Author
Dr Anupa Dharamsi is the founder and lead chiropractor at Handcrafted Chiropractic in Māngere, Auckland — a nervous-system-focused, trauma-informed practice supporting patients across South Auckland with a whole-body approach to care, nutrition, and long-term resilience.
Comments