Why Do I Overthink Everything? The Nervous System Link No One Told You About
You lie down to sleep and your mind starts its second shift.
Unfortunately for you, this shift isn't sending you a pay cheque at the end of the week.
Instead it's re-running conversations, rehearsing for that important meeting, building a task list you probably won't remember, or circling through a dozen brilliant ideas — the only problem being that it's 10pm, and it really isn't the time.
Not only are you exhausted, the mental looping feels like a hamster wheel you cannot seem to step off, no matter how hard you think about it.
So, from one busy thinker to another, I want to offer a reframe that changes everything for a lot of the people I work with.
Overthinking is rarely a thinking problem. It's usually a safety mechanism — a coping strategy, and a very intelligent one. When you see it from that lens, you can tend to it appropriately and with more respect and care.
Firstly, your mind is doing exactly what it was designed to do…
When your nervous system reads the world as unsafe — even in subtle, background ways — it goes looking for the threat. It scans and it predicts. It tries to think its way to certainty, because certainty feels like safety.
Overthinking is also a form of disembodiment. The more you live in the mind, the more disconnected you become from the present moment. If there's discomfort in the body — a restlessness, a busyness — it can feel more comfortable to disconnect from that and live up in the head instead.
So there are really two things happening at once:
Your nervous system is dysregulated, living in fight-or-flight, sending signals to your mind that something isn't okay.
Your mind shifts into gear to solve the perceived threat — and because it's uncomfortable to fully inhabit the body, you begin to live in the head.
What an extraordinary, adaptive strategy.
This is why the usual advice — "just stop thinking about it," "think positive thoughts," "be present and let it go" — not only fails but often creates more shame and confusion. Because I know you're sitting there thinking, I literally can't.
So the invitation isn't to think better. There's a great deal we can do in therapy and holistic counselling to gently challenge those beliefs — but the first place to start is to re-create a felt sense of safety in the body, enough that the mind can slowly and gently let go.
Signs it's your nervous system talking — not just anxiety
You might recognise a few of these:
The looping spikes when you're tired, still, or finally have a moment to yourself.
You feel physically wired even when you're exhausted.
Decisions feel enormous, because getting it "wrong" feels genuinely unsafe.
The moment one worry resolves, another quietly takes its place.
None of that means something is wrong with you. It means your system has been working hard, for a long time, to keep you safe.
What actually helps: calming the nervous system first
When we work with overthinking through the body rather than against the mind, things soften in a different way.
I'll preface this by saying it often feels counter-intuitive at first, because the mind will insist that solving the problem mentally is the way through. That's simply a protective strategy playing out — and in therapy we can really unpack it. You may hit roadblocks, resistance and tension, because you've unknowingly been moving away from the sensations in the body in the first place.
But tending to the body and slowing the system down is where the real shift begins.
Some simple ways to start regulating your nervous system:
Deep, slow breathing (a longer exhale than inhale)
Grounding — such as walking barefoot in nature
Using your five senses to reorient to the room; I personally love smell and essential oils
Sensory supports such as a weighted blanket or headphones.
Sensory based art and creative activities like working with clay
Dancing and moving to music that matches how you feel, letting the energy move through you
Bilateral stimulation — I love sensorimotor art therapy for this, and use it with clients in 1:1 sessions often
EFT tapping or simply tapping the body; butterfly tapping is beautiful here, and another form of bilateral stimulation
A magnesium bath
Meditation or a body scan — yoga nidra, or tense-and-release practices
Sound healing, singing or humming (this stimulates the vagus nerve)
Neurofeedback has over 50 years of research behind it for effectively treating ADHD symptoms and PTSD - it’s amazing for nervous system regulation and anxiety (stay tuned as I’ll be offering this in the clinic soon)
Co-regulating with loved ones and pets. Try hugging someone you feel safe with for at least a minute until you both let out a big exhale.
These are just some suggestions to help you begin learning what a regulated state actually feels like in your body.
From that steadier, more relaxed place, the thoughts have less to grip onto. The body calms, the nervous system down-regulates into a ventral vagal state of safety, relaxation and connection — and, ironically, the insight and clarity finally land, because there's a nervous system calm enough to receive them.
This is why the answer usually drops in during moments of peace, connection and flow — not while you're aggressively running through every possible outcome at midnight.
An integrative approach to overthinking and anxiety
If I'm honest, this has been a personal challenge for me my whole life. It's taken becoming a holistic counsellor and somatic therapist to really understand what's happening, and how to move through these states of mental confusion, looping and anxiousness.
What I've found works best is an integrative approach: regulating and finding safety in the nervous system, combined with skilful mindset and belief work, and parts work. Because the looping thoughts are simply a part of you that adapted to feeling unsafe and dysregulated. Regulate the body, tend to the parts, and question the beliefs with curiosity — and you have a real formula for change.
Ready to get off the hamster wheel?
If this resonates — and you want to learn to read your own nervous system, find calm and safety in your body, heart and mind again, and integrate the anxious, tired, overthinking parts that have been over-functioning for years — my clinic may be a good fit for you.
I offer Holistic Counselling and Somatic Therapy on the Sunshine Coast, and Australia-wide online.
👉 Book a free consult and we'll explore whether this space is the right support for you.
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