Ben Carey Donaldson, Certified IFS Therapist
(estimated reading time: 9 minutes)
It starts small. A thought about tomorrow's meeting. A replay of something you said at dinner. A quiet calculation of whether you handled something well enough. Then, before you notice, the whole machine is running — looping, analysing, rehearsing, second-guessing — and you can't find the off switch.
Most advice about overthinking treats it as a bad habit. Something to interrupt with deep breaths, gratitude lists, or sheer willpower. Sometimes those things help, temporarily. But they rarely explain why the thinking started in the first place, or why it keeps coming back no matter how many techniques you throw at it.
Drawing on the Internal Family Systems (IFS) therapeutic model, this article explores what overthinking actually is, and what becomes possible when you stop fighting it and start understanding it instead.
Why You Can't Just "Stop" Overthinking
The instruction to "stop overthinking" is a bit like telling someone to stop being tall. It sounds straightforward, but it misunderstands the nature of the problem.
Overthinking is not a switch you leave on by accident. It is an active process — something a part of your mind is doing, with effort and intention, often because it has no other option. The relentless mental rehearsal, the scenario-spinning, the post-mortems of conversations that ended hours ago — none of this is idle. It's work. And the part of you doing it can't afford to stop.
This is why techniques aimed at suppression tend to produce only temporary relief. You might manage to quiet the mind for an evening, but the part responsible for the overthinking hasn't changed its view of the situation. It still believes the vigilance is necessary. So it resumes, sometimes louder than before, as soon as there's space.
Understanding this changes the question. Instead of "how do I stop overthinking?" it becomes: "what part of me is doing this, and what does it need?"
What IFS Sees When You Overthink
In IFS terms, overthinking is almost always a protective strategy. The part running the mental loops is trying to keep you safe — by anticipating problems before they arrive, by rehearsing outcomes so you won't be caught off guard, by analysing situations until it feels like you've covered every angle.
The strategy is exhausting. But from this part's perspective, it makes complete sense. At some point — often early in life — this behaviour was necessary. Maybe it helped you navigate unpredictable family dynamics. Maybe it kept you ahead of criticism at school. Maybe it was the only tool available when the environment felt unsafe and nobody was explaining what was happening.
The problem is not that this strategy exists. The problem is that it hasn't updated since those early experiences. The part is still running the same programme, at the same intensity, long after the original context has changed.
Common Overthinking Parts
While every person's inner system is unique, overthinking tends to show up through a few recognisable configurations:
The Analyser breaks every situation into components and examines each one for risk. It believes that with enough information and enough processing, it can prevent mistakes. It is often the last part to fall asleep at night — because there's always one more angle to consider.
The Rehearser runs through future conversations and scenarios, scripting what to say and how to respond. It is trying to prevent embarrassment, rejection, or conflict by ensuring that nothing is left to chance. The cost is that spontaneity becomes almost impossible.
The Post-Mortem Reviewer replays past events, scanning for what went wrong or what could have been done differently. It isn't interested in closure — it's interested in making sure the mistake is catalogued so it never happens again. For this part, letting go of a past event feels reckless.
The Worst-Case Generator creates detailed imaginary scenarios of everything that could go wrong. It believes that if it can imagine the disaster vividly enough, it can somehow prepare for it — or prevent it from happening at all.
Why Overthinking Feels So Hard to Control
One of the most important concepts in IFS is blending — the phenomenon where a single part of who you are overwhelms your entire sense of self. When you're blended with an overthinking part, you don't observe the thoughts — you are the thoughts. The worrying is your entire experience of life.
Richard Schwartz, the founder of IFS, describes how this process shapes our identity without us realising it:
"Someone rejects us, and suddenly we are awash in shame; a driver cuts us off, and we're flooded with rage; we have to prepare for a presentation, and we have a panic attack. We know that they're overreactions, but we have no real idea as to why we get so upset. And because we never ask inside, we just go around thinking of ourselves as touchy, angry, or anxious people."
— Richard Schwartz, No Bad Parts
This is precisely what happens with chronic overthinking. The blending is so habitual that the person identifies as "an overthinker" — as if the mental churning were an unchangeable personality trait. The first step in understanding how parts operate is recognising that the overthinking is something happening in you, not something that is you.
The Neuroscience of an Overthinking Brain
There is a neurological dimension to why overthinking feels so sticky. Neuroscientist Lisa Feldman Barrett offers a perspective that complements the IFS view:
"I speculate that an anxious brain, in a sense, is the opposite of a depressed brain. In depression… you're locked into the past. In anxiety… you don't know what's coming around the next corner, and life contains a lot of corners."
— Lisa Feldman Barrett, How Emotions Are Made
This helps explain why overthinking parts work so relentlessly. The nervous system is registering a world full of unpredictable corners. The overthinking is an attempt to think through enough scenarios that the uncertainty narrows. The part doing the thinking isn't irrational. It's responding to a genuine signal from the nervous system that says: you don't know what's coming next.
What IFS adds to this picture is the relational dimension. The part generating the overthinking has a history. It formed in a specific context, for specific reasons, and it carries beliefs about what will happen if it lets go. Working with it requires more than calming the nervous system — it requires meeting the part itself.
What the Overthinking Is Protecting
Overthinking parts, like all protectors in IFS, are not working for their own benefit. They are protecting something more vulnerable underneath — what IFS calls an exile.
Exiles are younger parts that carry unprocessed emotional burdens: shame, fear, grief, a sense of not being enough. The overthinking protector exists because these feelings exist. Its job is to keep you busy enough, mentally, that you never drop into whatever the exile is holding.
This is why overthinking often intensifies at quiet moments — when you lie down at night, when you have an unstructured weekend, when you sit still for too long. The quiet creates space. The part responsible for the overthinking reads that space as dangerous, because space is where the exile's feelings might surface. So the mental churning fills the gap before anything else can.
For many people, the feeling beneath the overthinking is something like: if I don't think my way through this, I'll be caught off guard and something terrible will happen — and I won't be able to cope. Underneath that is often a younger part that was once overwhelmed by something it couldn't control, and whose pain was never adequately witnessed or soothed.
The overthinking is not the core problem. It is the system's attempt to manage the core problem. This changes what "solving" it actually requires.
Working With Your Overthinking Parts: An IFS Approach
The IFS approach to overthinking does not try to eliminate the mental activity or argue with it. It builds a different relationship with the part that's generating it. These steps can be practised independently, though deeper work often benefits from a trained therapist.
Step 1: Notice and Name
The next time you catch yourself in a loop — replaying, rehearsing, catastrophising — pause long enough to notice that it's happening. Then, instead of saying "I'm overthinking," try: "There's a part of me that's overthinking right now."
This is a small linguistic shift, but it creates an important distinction. It separates you — the one observing — from the part that's doing the thinking. That separation is the beginning of unblending.
Step 2: Unblend — Create a Little Space
Once you've noticed the part, see if you can create a small amount of space between you and its activity. You're not trying to stop it. You're not trying to feel differently. You're simply shifting from being the thought to being aware of the thought.
Schwartz describes how this kind of awareness can become woven into daily life:
"As I go through my day, I notice how much I'm in my body. I'll check my heart to see how open it is, feel whether my mind is also open or if I have a strong agenda or pressured thoughts..."
— Richard Schwartz, No Bad Parts
For someone with active overthinking parts, even thirty seconds of this kind of check-in — where is the thinking happening in my body? How urgent does it feel? — begins to shift the dynamic. The part is still there. But you are no longer fully inside it.
Step 3: Get Curious About Its Job
Instead of being annoyed by the overthinking or trying to make it stop, turn toward the part with genuine curiosity. Ask it — internally, silently — what are you working on? What are you trying to prevent?
You may or may not get a clear answer. What matters more than the answer is the orientation: you are approaching the concern respectfully, rather than as noise to be eliminated. This shift — from adversary to ally — is what allows something new to happen.
Step 4: Ask What It's Afraid Would Happen If It Stopped
This question often reaches the heart of the pattern. When you ask an overthinking part what would happen if it stopped thinking, the answer tends to reveal what it's protecting. Common responses include: you'd make a mistake and everyone would see, or you'd be blindsided by something painful, or you'd fall apart.
These fears point toward the exile material beneath the protector. You don't need to access or resolve that material on your own. Simply hearing what the part is afraid of — and acknowledging that its fear makes sense — can create a meaningful shift. The part is being seen. For many overthinking protectors, that alone is something they've never experienced.
For those looking to build more of this daily awareness into their lives, the article IFS for Daily Life: Becoming More Self-Led explores practical entry points — the pause before reacting, the body check-in, the recognition of which part is active — that make this kind of inner work accessible outside of therapy.
When Overthinking Becomes Exhaustion
Overthinking is not just mentally uncomfortable. Over time, it becomes physically depleting. The part running the mental loops is consuming real energy — sustained cognitive effort, chronic activation of the stress response, sleep disrupted by a mind that won't settle. When this goes on long enough, it stops looking like anxiety and starts looking like burnout.
This is a pattern worth recognising: the tiredness that doesn't resolve with rest, the sense that your mind is always working even when nothing specific is wrong, the low-grade depletion that colours everything slightly grey. It's not always about overwork in the conventional sense. Sometimes it's about a system that has been overthinking its way through life for so long that the inner machinery is running on fumes.
From an IFS perspective, this is what happens when protectors have been carrying their jobs alone, without support, for too long. The overthinking part has been scanning, analysing, and preparing — non-stop — and no one has ever told it that it can rest.
"As you unburden your exiles, it allows your protectors to transform, and you begin hearing more from those parts of you that aren't so obsessed and driven — the ones who love being truly intimate with others, the ones who want to create art and move your body, the ones who want to play with family and friends, and the ones who just love being in nature."
— Richard Schwartz, No Bad Parts
What changes when the exiles are met is not just the overthinking itself — it's the entire quality of inner life. The protectors don't need to work as hard. The mind quiets, not because it's been silenced, but because the reason for the noise has been addressed.
Try the Overthinking Self-Reflection Tool
If something in this article felt familiar — the loops, the rehearsals, the sense that your mind is working even when you'd like it to stop — the Overthinking IFS Self-Reflection Tool offers a structured way to explore what's happening.
It's a short worksheet with nine open-ended prompts across three sections: noticing when and how the overthinking shows up, getting curious about the protector behind it, and asking what that part might actually need. There are no scores, no profiles, no diagnosis. The purpose is simply to meet the pattern with curiosity rather than frustration — the same orientation described throughout this article, but with a concrete structure to guide the process.
It pairs directly with the ideas here and can be returned to as many times as it's useful.
Try the Overthinking Self-Reflection Tool →
Want to explore this further?
If the patterns described here feel familiar — the loops that won't stop, the vigilance that won't let up, the quiet exhaustion beneath the mental noise — IFS offers a structured and non-pathologising way to understand what's happening and begin to work with it. A free introductory consultation is available if you want to explore whether this approach might be a fit.
About the Author
Ben Carey Donaldson is a certified IFS therapist, meditation guide, and group facilitator based in the Fontainebleau–Paris region of France. He works online with English- and French-speaking clients across Europe and internationally, supporting people navigating anxiety, overthinking, and the protective patterns that keep the mind running when it most needs to rest. His approach is grounded, non-pathologising, and informed by somatic and contemplative practice.
Frequently Asked Questions
Is overthinking the same as anxiety?
Overthinking is one of the most common expressions of anxiety, but it isn't the same thing. In IFS terms, overthinking is typically the activity of a specific protector part — one whose strategy is mental analysis and anticipation. Anxiety is a broader experience that can involve many different parts and many different protective strategies. Some anxious parts overthink. Others produce physical tension, avoidance, or hypervigilance. Working with the specific part generating the overthinking — rather than treating "anxiety" as a single entity — is what allows the pattern to shift.
Why does overthinking get worse at night or during quiet moments?
Overthinking parts are often working to prevent difficult feelings from surfacing. During the day, external demands provide natural distraction. When things quiet down — at night, on weekends, during unstructured time — the buffer disappears. The part responsible for the mental activity reads this as a moment of vulnerability and increases its output to fill the gap. This is why the thinking often intensifies precisely when you most want to rest.
Can I stop overthinking without therapy?
You can meaningfully shift your relationship with overthinking through the self-guided practices described in this article — noticing the part, unblending, approaching it with curiosity. Many people find that these steps create enough space to break the automatic quality of the pattern. When the overthinking has deep roots — protecting old pain, shame, or fear — the support of a trained IFS therapist provides the relational safety needed to access and work with what lies beneath the protection.
How is the IFS approach to overthinking different from CBT?
Cognitive behavioural therapy works primarily with the thoughts themselves — identifying cognitive distortions, challenging them with evidence, and replacing them with more balanced thinking. IFS takes a different route. Rather than arguing with the overthinking, it approaches the part generating it with curiosity and compassion, asking what it's trying to protect and why it believes the vigilance is necessary. Both approaches can help. IFS tends to address the relational and emotional roots of the pattern rather than the cognitive surface.
What if I try to approach my overthinking part and just feel more anxious?
This is common and not a sign that something has gone wrong. When you turn toward an overthinking part, other parts may activate in response — a part that doesn't want you to slow down, or a part that fears what you'll feel if the thinking stops. In IFS, these reactions are treated as information, not obstacles. The goal is not to push through them but to notice them, acknowledge them, and proceed at a pace the whole system can tolerate. If approaching the part consistently produces escalation rather than curiosity, that's a signal that working with a therapist may be the appropriate next step.
How long does it take for overthinking patterns to change with IFS?
The initial shift — from being consumed by the overthinking to having some observer awareness of it — can happen relatively quickly, sometimes within the first few practices. The deeper change, where the part genuinely relaxes and doesn't need to work as hard, typically develops over weeks or months of consistent work. This is because the part's behaviour is tied to what it's protecting: until the underlying exile material is addressed, the protector has reason to keep running. The timeline depends on the depth and history of the pattern, and whether the work is self-guided or supported by a therapist.
Related Articles
What Is Internal Family Systems (IFS)? — A Definitive Guide
How IFS Works: Parts, Protectors, Exiles, and Self-Energy
IFS for Daily Life: Becoming More Self-Led
Why You're Always Tired: What Your Inner System Is Trying to Tell You
References & Further Reading
1. No Bad Parts: Healing Trauma and Restoring Wholeness with the Internal Family Systems Model — Richard C. Schwartz (2021)
2. Internal Family Systems Therapy (2nd ed.) — Richard C. Schwartz & Martha Sweezy (2019)
3. How Emotions Are Made: The Secret Life of the Brain — Lisa Feldman Barrett (2017)