Why Can’t You Stop Overthinking?

MENTAL HEALTH & WELLNESS • July 27, 2026

Last reviewed: July 2026 by Annie Wright, LMFT

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In short: Overthinking is your nervous system’s attempt to stay safe by anticipating threat. For some women that’s trauma-rooted, for others it’s anxiety or temperament, and for many it’s a mix. It isn’t a character flaw.

What Happens at 3 A.M. When Your Mind Won’t Quiet Down?

It’s 3:14 a.m., and Veronica’s already awake.

She didn’t set an alarm. Her brain does it for her: that reliable jolt into consciousness between three and four, not unlike the way she used to surface out of sleep as a kid when voices shifted into argument two floors down.

Tonight the loop is already running by the time she registers where she’s landed. The Q3 board deck she’s presenting Thursday. The email she answered too sharply on Tuesday. The conversation with her sister last Sunday that she’s replayed forty times since, parsing the exact tone of “fine.” Forty-two years old, chief operating officer at a mid-size logistics company, and she can recite the inflection of a six-word text sent nine days ago.

She lies still, watching the ceiling fan she’s been meaning to replace, trying to slow-breathe her way out of it the way the app on her nightstand suggests. It never works. The thoughts don’t stop because she breathes slowly. They just continue, politely, while she breathes slowly.

By 4 a.m. she gives up and gets her laptop from the kitchen counter. The deck is actually pretty good by 6 a.m., when she closes it to get her twins up for school.

She’ll run on fumes at the office today, the way she always does. She’s logged six or fewer hours of sleep for so long she can’t remember what rested feels like, and she’s told herself this is just the tax of the career she’s built: her personality, what makes her good at her job, something that’ll slow down once she gets through this quarter.

It hasn’t slowed down. Not once. For some people in Veronica’s exact situation, this pattern would trace mostly to generalized anxiety, or a temperament that runs vigilant, or the ordinary pressure of managing eleven direct reports. For Veronica, when we eventually mapped it together, a meaningful piece of it turned out to have earlier roots. It wasn’t only a habit. It was something her nervous system had learned to do a long time ago, in a house where nobody warned her when the weather was about to change.

If you recognize something of yourself in Veronica, this post is for you: what’s happening in your brain when the loop won’t stop, where that pattern can come from, why it’s so persistent in driven and ambitious women, and what tends to help.

What Is Overthinking, Really?

Let’s get precise, because “overthinking” gets used casually in ways that flatten something clinically specific. In the literature, it maps onto two related but distinct processes: rumination and worry. Rumination is past-oriented, the mind replaying what happened. Worry is future-oriented, generating “what if” scenarios for threats that haven’t happened yet. Most people who overthink do both.

Here’s the distinction I ask clients to sit with. Reflection moves. It starts at a question and arrives somewhere new, even somewhere uncomfortable. Rumination doesn’t move. It’s the same three exits on the same closed highway, driven again and again, arriving nowhere new no matter how many times the tank gets refilled. Clients describe it to me as “thinking hard,” and I understand why: it feels effortful, even exhausting. What it isn’t is productive. It doesn’t hand you a decision. It hands you the same lap again.

I recently reread Susan Nolen-Hoeksema’s body of work, and one finding has stayed with me since graduate school: rumination isn’t merely a symptom of depression and anxiety. It’s a contributing cause. Her 2008 review with colleagues Blair Wisco and Sonja Lyubomirsky, published in Perspectives on Psychological Science, showed that experimentally inducing rumination in non-depressed people produced measurable increases in depressive and anxious affect, and reducing it produced measurable decreases. Addressing the overthinking directly isn’t a consolation prize while you wait for underlying distress to resolve. It’s often the primary intervention.

Here’s the piece I want to be careful with, because it’s easy to overstate: for some women, especially those with relational trauma histories, overthinking isn’t only a cognitive habit that got out of hand. It’s a survival response, learned early, because staying two steps ahead of every threat was once the safest way to move through an unpredictable environment. That’s not the whole story for everyone who overthinks. Plenty of driven women arrive at this pattern through anxiety that has nothing to do with childhood adversity, or a conscientious temperament, or the sheer cognitive load of a demanding life. But when trauma is part of the picture, the overthinking tends to have a specific texture: a system that worked, once, and hasn’t gotten the update that the environment has changed.

That reframe, from “character flaw” to “an adaptive response that may or may not still fit your current environment,” is where real assessment begins. We’ll keep holding that distinction throughout this post.

What Is Actually Happening in Your Brain?

When clients ask why willpower and mantras don’t work, I explain it this way: you’re trying to out-think your threat-detection system, and for many people, that system is faster than the rational mind arguing with it.

Picture the amygdala as the overzealous new hire on Veronica’s team, the one who flags every email “URGENT” because they haven’t yet learned which fires are real. In most people, that overzealous hire calms down once she confirms nothing’s burning. In some, particularly those with trauma histories or significant anxiety, she’s been promoted to run the whole floor, and she flags the email before the prefrontal cortex, the actual seasoned manager, even gets to read it. So the prefrontal cortex does its job anyway: it starts drafting responses to a fire nobody has located yet. Since the nervous system signal driving all this often isn’t a danger you could point to in the room, the loop keeps running past the point of usefulness.

Stephen Porges, PhD, distinguished university scientist at Indiana University and developer of polyvagal theory, describes the autonomic nervous system’s hierarchy of threat responses: social engagement, fight or flight, and freeze. In fight-or-flight, where many chronically overthinking women spend real time, the nervous system stays mobilized and scanning: the relentless “what if” of worry, the relentless replay of rumination. Some of it’s in your body.

Bessel van der Kolk, MD, psychiatrist, trauma researcher, and author of The Body Keeps the Score, has written about why some trauma survivors can’t reason themselves out of threat responses: the nervous system runs a program that predates language and doesn’t update on argument alone. When that’s happening, overthinking is often the cognitive expression of the state, not its cause. This isn’t universal. Plenty of overthinking has a simpler explanation.

Judson Brewer, MD, PhD, psychiatrist and neuroscientist at Brown University’s Mindfulness Center, found that suppressing thought, the “just stop thinking about it” approach, can increase thought frequency: the classic white-bear problem. What reduces DMN activity is curiosity, non-evaluative attention that interrupts the self-referential loop.

Ellen Hendriksen, PhD, clinical psychologist at Boston University’s Center for Anxiety and Related Disorders, adds that anxiety-driven overthinking can function as avoidance. The “what if” chains are cognitively demanding but emotionally numbing compared to the full feeling of the feared outcome. This is a pattern I see often in driven and ambitious women: the analytical capacity that serves them professionally gets recruited into emotional avoidance. The overthinking feels like it’s solving something. Often it’s circling a feeling still waiting to be felt.

How Does Overthinking Show Up Differently in Driven Women?

Overthinking doesn’t look the same in everyone. Several recurring patterns show up often in driven and ambitious women, each a specific expression of a threat-detection system managing a specific concern, whatever that concern’s underlying source.

The Perfectionism Loop. The endless review of your own performance: cataloguing every stumble in a presentation, parsing an email for signs of inadequacy, the 3 a.m. inventory of what you should have said differently. Find the flaw first, and judgment feels neutralized. Except it usually isn’t, and the loop starts again.

The Anticipatory Anxiety Loop. The rehearsal of every scenario before a high-stakes event. For some women this traces to earlier experiences where preparation was genuinely the difference between safety and danger. For others it’s closer to performance anxiety sharpened by a demanding job.

The Relationship Analysis Loop. Parsing other people’s behavior for signs of concern: the short text analyzed for seventeen minutes, the colleague who seemed off in a meeting. In women with relational trauma histories, this can function as continuous monitoring, a strategy for catching a rupture before it happens. In women without that history, it can simply reflect an attuned temperament working overtime.

The Meta-Loop. Overthinking about the overthinking: the “why can’t I just stop” spiral. Susan Nolen-Hoeksema, PhD, put it well: “Ruminators don’t just think about their problems. They think about their thinking.” This shows up often in driven women who bring their analytical intelligence to their own mental processes, and find that analysis alone doesn’t resolve it.

What these patterns share: they’re largely automatic, and they usually developed because they served a real function somewhere. A woman who endlessly anticipates problems may have grown up where bad things happened without warning, or she may simply be a careful person under real pressure. Both are worth exploring before assuming one explanation.

Meet Veronica again. In session, she describes the loop in precise, almost clinical detail. What she doesn’t have, at first, is the ability to locate it in her body. When I ask what overthinking feels like physically, she pauses. “Like acceleration,” she finally says. “Like I’m always already moving toward the next thing before I’ve finished this one.”

“When did you first notice yourself moving that fast?” I ask.

She’s quiet. Then: “My mother was sick a lot when I was a kid. Not dying, but fragile. Someone had to manage things. I was the oldest, so I became the one who kept track.”

“How old were you?”

“Seven,” she says, without hesitation. “Maybe six.”

Sitting with that answer, I felt the quiet click I feel often in this work: the moment a pattern that looked purely professional turns out to have older architecture underneath it. Veronica didn’t build the perfectionism loop in business school. She built it at six, in a household where someone needed to keep watch. Whether every strand of it’s still trauma-driven today, or some of it has calcified into a personality style layered over a demanding job, is a question we’re still working through. Both are plausible.

This is part of what I mean when I say overthinking can be a trauma response, though not always, and not as the whole explanation even when it applies. Sometimes it traces to a single event. More often, when trauma is involved at all, it traces to a nervous system that learned constant vigilance was the safest available strategy, and hasn’t fully registered that the environment has changed.

Where Does This Vigilance Actually Come From?

A lot of content about overthinking treats it as a single story with a single cause: a bad habit, correctable through better thinking. For a meaningful share of women, temperament and generalized anxiety explain most of what’s happening, and useful cognitive strategies exist for exactly that. But when childhood adversity is part of the history, the picture needs another layer.

For women with childhood trauma histories, overthinking often starts in the body before the mind, tracing back to early lessons about whether the world, and they, are safe. Research by Katherine McLaughlin, PhD, developmental and clinical psychologist, has found that childhood adversity is associated with elevated rumination in adulthood, which partially explains why adversity is linked to adult depression and anxiety. A child who grows up in an unpredictable environment can develop a threat-detection system that’s finely tuned. In the original context, that may well have been survival.

The difficulty: the nervous system doesn’t automatically recalibrate the moment the environment changes. A driven woman who left a chaotic home twenty years ago can still find her threat-detection system running a calibration set at eight years old. Her prefrontal cortex knows she’s safe. Her amygdala isn’t fully convinced. When that’s the case, overthinking is often the most visible symptom. When it isn’t, treating it as automatically trauma-rooted is its own kind of inaccuracy.

Many women who overthink, whatever the root, come to identify with it. It’s not just something they do. It becomes something they are: “a worrier,” someone whose “brain doesn’t turn off.” The work isn’t to argue that belief away. It’s to help a nervous system gather enough new experience that it can loosen its grip on a strategy it may no longer need.

I think about Nolen-Hoeksema’s finding often, because it names what I watch driven women do in session all the time, mistaking the exhausting motion of rumination for genuine problem-solving.

Both/And: Is Your Overthinking Protective, or Exhausting?

One thing I notice consistently in driven women: how much shame surrounds the overthinking. “Why can’t I just stop?” “What’s wrong with me?” The shame makes everything worse, because it activates the threat-detection system and intensifies the very loop you’re trying to exit.

Here’s the Both/And, because both of these are true at once. Your overthinking isn’t, on its own, evidence of a character flaw. Whether its root is trauma, anxiety, temperament, or the load of your current life, it’s usually your mind trying to solve a problem, sometimes real, sometimes old and no longer active. A driven woman who overthinks isn’t automatically broken or “too much.” She’s often running a protective program that may need updating rather than deleting.

And: that program can cost you something real. Sleep. Presence. The capacity to receive good news without scanning it for the catch. The chronic cognitive load is exhausting in ways that accumulate into a depletion rest alone doesn’t fix, and you often can’t think your way out, because thinking is part of the mechanism.

Let me introduce you to Adriana. She’s 48, a partner at a mid-size architecture firm, holding an enormous amount of information at once, anticipating budget shifts and client politics several moves ahead most of the day. Her overthinking, professionally, is genuinely functional. Her partners value it. She’s built a career partly on running scenarios other people don’t think to run.

She comes to therapy because her marriage is straining under it. Her husband, patient and steady, has told her gently that even when they’re together, part of her is somewhere else. Adriana knows he’s right. She notices it at dinner, mentally redlining a contract, and in bed beside him with her mind already in Monday’s client walkthrough, and when her son asks her a question twice because she didn’t hear it the first time.

“The overthinking isn’t the problem at work,” she tells me in an early session, turning her wedding ring once around her finger. “It’s that I can’t turn it off anywhere else.”

When we mapped Adriana’s history together, we didn’t find a clear trauma origin the way we did with Veronica. Adriana grew up in a stable, if intense, household of high achievers, and her overthinking looks more like a professional habit generalized past its usefulness than a nervous system frozen in an old threat state. That distinction mattered for her treatment: less somatic trauma processing, more deliberate, practiced boundaries around when the strategic-thinking mode gets to run. Not every overthinking pattern needs the same door opened. Hers needed a different one.

This is the Both/And in one of its more precise forms. The same capacity that’s adaptive in one context, strategic anticipation, continuous scanning, can create disconnection in another, regardless of whether the pattern’s original root was trauma or something else. Adriana doesn’t need to stop thinking strategically. She needs the capacity to choose when that mode runs, rather than having it be the only mode available. That’s part of what trauma-informed therapy, or good general clinical care when trauma isn’t in the picture, can offer: not elimination of an adaptive capacity, but an expanded repertoire, a nervous system that can genuinely choose between vigilance and rest.

The Systemic Lens: Why Do Driven Women Overthink More?

Ask a room full of clinicians which finding replicates most reliably across decades of rumination research, and this is the one that comes up: women report ruminating more than men, consistently, across age groups and across cultures. I used to assume that gap was mostly wiring. What changed my mind was watching it show up the same way in client after client who’d been raised to track everyone else’s mood before her own: the ratio tracks the roughly 2:1 female-to-male gap in depression prevalence, and it doesn’t read as primarily biological. It reads as trained.

Susan Nolen-Hoeksema, PhD, spent decades tracing this pattern: girls are often socialized to focus inward on their emotional states, to evaluate their behavior in relational terms, and to take on responsibility for others’ emotions. This starts early, in cultural scripts that praise girls for self-monitoring while penalizing them for taking up too much external space.

For many women, the result is a ruminative style that’s in significant part a learned response to cultural expectations, not purely “just my brain.” That doesn’t erase the individual variation underneath it. It adds a layer most private accounts of overthinking leave out.

For driven and ambitious women specifically, professional culture often rewards overthinking. The woman who anticipates every problem gets praised as thorough and indispensable, which creates a complicated bind: the behavior costing her the most psychologically is often the behavior most rewarded. Reducing it can feel professionally risky even when it’s personally necessary. This is part of why trauma-informed executive coaching can be valuable alongside therapy: recalibrating a pattern has to account for a demanding professional environment, not pretend it away.

There’s also a race and culture dimension a responsible Systemic Lens shouldn’t skip. For women of color in predominantly white professional spaces, the hypervigilance behind some overthinking isn’t only psychologically conditioned. It’s often rationally warranted: the monitoring of social dynamics and anticipation of bias are realistic responses to real patterns, not distortions. The overthinking of a Black woman in a corporate boardroom isn’t the same phenomenon as the overthinking of someone operating in relative, unearned safety. Holding that distinction is part of why “just anxiety” and “just trauma” are both too simple as universal labels.

What Actually Helps the Overthinking Brain?

Let me be direct about what tends to work and what doesn’t. What usually doesn’t work long-term: willpower, thought-stopping, telling yourself to “just let it go.” These treat overthinking as a habit a stronger intention can override, and they often fail because they use the same system producing the loop to try to resolve it. It’s a bit like reasoning with a smoke alarm.

What tends to help depends partly on the root. For overthinking that’s mostly anxiety or temperament-driven, structured cognitive-behavioral tools, sleep repair, and lifestyle changes can do most of the work alone. For overthinking with meaningful trauma roots, those tools help but usually need pairing with approaches that work at the level of the nervous system.

Somatic Therapy. Remember Veronica, still cataloguing the board deck at 4 a.m.? Her mind wasn’t going to out-argue that pattern, because the pattern wasn’t only living in her mind. Somatic work goes around the argument entirely: sensation, breath, movement, aimed at the activated body underneath the analysis, so the system has somewhere to put the energy the overthinking has been recruited to manage. This is part of what somatic-informed therapy does in my practice.

EMDR. For a client like Veronica, whose overthinking traces back to a seven-year-old keeping watch over a fragile household, EMDR is often where I’d start. Eye Movement Desensitization and Reprocessing helps the brain file old, unprocessed memories as finished business rather than live threats, which tends to lower the charge on the loop considerably. Trauma-focused therapy including EMDR is available through my practice.

Internal Family Systems. IFS can help a woman who’s tried to argue herself out of overthinking and hasn’t gotten far. Rather than treating overthinking as a problem to eliminate, IFS treats the part of you that overthinks as a protector that’s been working hard, for a long time, to keep you safe. Fixing the Foundations^™, my course for relational trauma recovery, includes IFS-informed material.

Mindfulness, a specific kind. Judson Brewer’s research at Brown University found mindfulness can reduce DMN activity by activating present-moment attention. Mindfulness as suppression tends not to work. Mindfulness as curiosity, non-evaluative attention that includes the overthinking itself, tends to work better.

Regulation before reasoning. When your body is in a genuine threat state, you often can’t think your way to calm. Practically, this means a small repertoire of regulation tools, movement, breath, cold water, co-regulation with a safe person, that you can use in the moment of a spiral before attempting a cognitive fix.

Addressing overthinking isn’t usually linear or fast. But real change is genuinely possible, for trauma-rooted and anxiety-rooted overthinking alike, even though the path looks different in each case. If you’re recognizing something of yourself, in Veronica at 3 a.m., in Adriana who can’t be present at dinner, you don’t have to keep managing it alone.

The loop can often be interrupted. A nervous system can learn something new, not because you forced it to, but because you gave it, maybe for the first time, a consistent experience of actually being okay. That’s part of what trauma-informed therapy can offer when trauma is present.

If you’re ready to explore what that support could look like, you can connect here for a complimentary consultation. And if you want to start by understanding the patterns beneath your patterns, my free quiz can help you get a clearer read on what might be shaping your particular version of this.

You deserve more than managing this. You deserve some real rest.

Warmly,
Annie.

Who I Am and Why I Know This

In more than 15,000 direct clinical hours working with driven and ambitious women, I’ve seen overthinking present in a wide range of clients: some with complex trauma, some with generalized anxiety, some with neither, just a demanding job and a conscientious mind. Bessel van der Kolk, MD, psychiatrist and trauma researcher and author of The Body Keeps the Score, documented how trauma can dysregulate the prefrontal cortex’s capacity to evaluate real versus perceived threat, keeping some brains locked in surveillance mode (van der Kolk 2014). That’s one real pathway into chronic overthinking. It isn’t the only one, and part of my job is figuring out which pathway, or combination, actually applies to the woman in front of me.

Warmly, Annie

Related Reading

Buckner, Randy L., Jessica R. Andrews-Hanna, and Daniel L. Schacter. “The Brain’s Default Network: Anatomy, Function, and Relevance to Disease.” Annals of the New York Academy of Sciences 1124 (2008): 1-38. https://doi.org/10.1196/annals.1440.011.

McLaughlin, Katie A., Karestan C. Koenen, Eric D. Hill, Maria Petukhova, Nancy A. Sampson, Alan M. Zaslavsky, and Ronald C. Kessler. “Trauma Exposure and Posttraumatic Stress Disorder in a National Sample of Adolescents.” Journal of the American Academy of Child and Adolescent Psychiatry 52, no. 8 (2013): 815-830. https://doi.org/10.1016/j.jaac.2013.05.011.

Nolen-Hoeksema, Susan, Blair E. Wisco, and Sonja Lyubomirsky. “Rethinking Rumination.” Perspectives on Psychological Science 3, no. 5 (2008): 400-424. https://doi.org/10.1111/j.1745-6924.2008.00088.x.

Nolen-Hoeksema, Susan. Women Who Think Too Much: How to Break Free of Overthinking and Reclaim Your Life. New York: Henry Holt and Company, 2003.

van der Kolk, Bessel A. The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma. New York: Viking Press, 2014.

Watkins, Edward R. “Constructive and Unconstructive Repetitive Thought.” Psychological Bulletin 134, no. 2 (2008): 163-206. https://doi.org/10.1037/0033-2909.134.2.163.

References

Peer-Reviewed Research (Vancouver)

1. van der Kolk BA, Wang JB, Yehuda R, Bedrosian L, Coker AR, Harrison C, et al. Effects of MDMA-assisted therapy for PTSD on self-experience. PLoS One. 2024;19(1):e0295926. doi:10.1371/journal.pone.0295926. PMID: 38198456.
2. Payne P, Levine PA, Crane-Godreau MA. Somatic experiencing: using interoception and proprioception as core elements of trauma therapy. Front Psychol. 2015;6:93. doi:10.3389/fpsyg.2015.00093. PMID: 25699005.
3. Porges SW. Polyvagal Theory: Current Status, Clinical Applications, and Future Directions. Clin Neuropsychiatry. 2025;22(3):169-184. doi:10.36131/cnfioritieditore20250301. PMID: 40735382.

Books & Cultural Sources (Chicago Author-Date)

• Morrison, Toni. Interview by Oprah Winfrey. “The Truest Eye.” O, The Oprah Magazine, November 2003.

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