You know you're overthinking. You know you've already analyzed this situation from every possible angle. And yet, here you are, hosting another full-blown strategy meeting in your head. Attendance: you, your anxiety, and every hypothetical scenario imaginable.
Sound familiar?
Overthinking can leave you mentally exhausted, keep you awake at night, and make it difficult to enjoy the moment you're actually living in. And frustratingly, the harder you try to think your way out of it, the more tangled things can become.
So why does your brain keep doing this, and how can you finally break the cycle?
Let's look at what the research says, the practical ways to quiet the mental noise, and how to recognize when there might be something deeper behind those recurring thoughts.
Table of Contents
Introduction
Why Does Overthinking Happen?
Practical Ways to Stop Overthinking
Is Overthinking a Sign For Something Deeper?
Frequently Asked Questions
Your Next Step
References
Why Does Overthinking Happen?
Overthinking is a pattern of thinking that can involve your brain's threat response, the way you process experiences, and your ability to redirect your attention.
The clinical term rumination describes repeatedly dwelling on negative experiences or feelings. A broader term, repetitive negative thinking (RNT), includes getting caught in recurring worries about the past or future.
So why does your mind keep doing it, even when you know it's not helping?
Your brain may be trying to find an answer to something that feels uncertain or threatening. It keeps reviewing what happened, imagining what could go wrong, or searching for a solution that will finally help you feel safe. But when there's no clear answer, the thinking can become a loop.
Here are a few key players involved.
The default mode network (DMN): Think of this as part of your brain's internal thinking system. It helps you reflect on experiences, remember the past, and imagine the future. But when you keep replaying a conversation or worrying about what might happen, this inward focus can become repetitive.
The frontoparietal network (FPN): This network helps you direct your attention, concentrate, and stay focused on a task. When you're caught up in your thoughts, shifting your attention back to work or the conversation in front of you can feel surprisingly difficult.
The amygdala and stress response: Your amygdala helps process potential threats. When something feels threatening, your body may release stress hormones such as adrenaline and cortisol. This can leave you feeling tense, restless, or on edge, making it harder to settle your mind.
What Does the Research Tell Us?
A 2022 study used brain-imaging meta-analyses to investigate where rumination and the ability to control attention overlap in the brain.
The researchers found that rumination was primarily associated with the default mode network (DMN), which supports internal thought and self-reflection, while inhibitory control was associated with the frontoparietal network (FPN), which helps you direct your attention and stay focused on a task. They also identified several brain regions involved in both processes.
Think of it this way: one system helps you turn inward and think things through, while another helps you redirect your attention when it's time to move on. When you're caught in a rumination loop, shifting your focus away from your thoughts can feel surprisingly difficult.
One brain region involved in cognitive control is the dorsolateral prefrontal cortex (DLPFC). Researchers are now investigating how its communication with regions involved in internal thought may relate to rumination. A 2026 study by Taylor and colleagues explored whether real-time brain-imaging neurofeedback could help participants change connectivity between these regions.
Together, this research offers a useful insight: overthinking isn't simply a matter of having too many thoughts.
It involves brain systems associated with repetitive self-focused thinking and the ability to redirect attention.
In other words, you can know you're overthinking and still struggle to switch off the loop. That's why trying to reason your way out of every thought doesn't always work and why learning to respond differently to those thoughts can be so important.
Practical Ways to Stop Overthinking
Well, simply trying to stop your thoughts probably isn’t going to work.
1. Schedule a Time To Worry
Thomas D. Borkovec is the pioneering creator of the "scheduled worry time" technique. Overthinking becomes an “anytime, anywhere” habit, so the goal here is to confine it to a certain time, so that it’s not hijacking your entire day.
How to try it: Set aside 15–30 minutes each day for worry time. When a concern comes up outside that window, acknowledge it and remind yourself, "I can come back to this later." If helpful, write it down and return to what you were doing.
2. Go External, Not Internal
Many people try to think their way out of repetitive thought loops, hoping a solution or answer will finally appear. But, the stuck feeling is actually a stuck circuit between the inward-focused Default Mode Network and the outward-focused executive system. This means analyzing is a part of that network. Going outside of it and engaging with your DLPFC is what can help break the loop.
How to try it: Have a conversation that requires genuine listening, work on a puzzle, cook a new recipe, or take a walk and notice your surroundings. Choose something that brings your attention into the present, rather than going in an internal, downward spiral.
3. Move Your Body
Don’t underestimate the power of looking at the body when you start to obsessively think. Anxiety is felt in the body, when there’s a perceived future threat. The solution often isn’t more thinking, but rather, feeling, especially when your nervous system is in threat mode.
How to do it: Breathe gently, allowing your exhale to be slightly longer than your inhale. Ground yourself by noticing your feet against the floor. Take a walk or stretch your body, use comforting warmth, such as a warm shower or blanket, or connect with someone who helps you feel safe and supported.
3. Use Grounding Tools
Keeping yourself grounded in the present is an excellent way to challenge rumination’s tendency to replay the past.
How to do it: Body movement, temperature contrast, deep breathing, sensory and body awareness are all physical grounding tools you can use to stay present. Mental tools—anchoring statements, recitation, or categorization—can be just as effective at disrupting the pattern to ruminate.
Is Overthinking A Sign For Something Deeper?
Is overthinking a symptom of something else? Like autism? ADHD? Depression?
Everyone overthinks sometimes. But when it becomes persistent or interferes with daily life, it may be connected to something more.
Overthinking isn't a diagnosis, but repetitive negative thinking can occur alongside anxiety, depression, ADHD, trauma-related difficulties, chronic stress, and burnout.
Past experiences can also shape how you respond to uncertainty. If you've experienced unpredictable relationships or emotional hurt, you might find yourself replaying conversations, anticipating rejection, or analyzing other people's behavior to feel more prepared.
People with ADHD or autism may also experience repetitive thinking for various reasons, including difficulties with attention regulation or uncertainty. However, overthinking alone doesn't indicate either condition.
Consider seeking support if overthinking:
Regularly disrupts your sleep or leaves you exhausted.
Makes it difficult to make decisions or concentrate.
Leads to repeated reassurance-seeking or replaying conversations.
Interferes with your relationships, work, or enjoyment of everyday life.
If it Becomes Too Much To Handle
If you’ve tried everything, and the mental noise is just too much, then it may be time to try a relational approach.
Insight is wonderful. But, it can only get you so far.
I'm Alison, a licensed marriage and family therapist in California. I help adults work through anxiety, process past experiences, and build healthier relationships with themselves and others.
If overthinking is making it difficult to feel present or enjoy your life, I'd love to help you explore a way forward. I offer free consultations to see whether working together feels like a good fit.
Frequently Asked Questions
How do I stop overthinking immediately?
Try grounding yourself, slowing your breathing, or focusing on a task that brings you into the present. Rather than fighting the thought, acknowledge it and remind yourself that you don't have to solve everything right now.
Why do I overthink everything?
Overthinking can be associated with anxiety, perfectionism, stress, fear of making mistakes, or past experiences. Understanding what drives your thought patterns can help you find more effective ways to respond.
Why does overthinking get worse at night?
With fewer distractions, worries can become more noticeable at night. Setting aside time for worries earlier in the day and establishing a calming bedtime routine may help.
Can overthinking be a sign of anxiety or trauma?
Yes, repetitive negative thinking can occur alongside anxiety and trauma-related difficulties, among other experiences. Overthinking alone doesn't establish a diagnosis, but therapy can help you explore what's contributing to it.
Can therapy help with overthinking?
Yes. Therapy can help you recognize repetitive thought patterns, manage anxiety, and explore how past experiences influence your responses. Depending on your needs, treatment may also help you build emotional regulation skills and healthier relationship patterns.
References & Further Reading
Song, X., Long, J., Wang, C., Zhang, R., & Lee, T. M. C. (2022). The inter-relationships of the neural basis of rumination and inhibitory control: neuroimaging-based meta-analyses. Psychoradiology, 2(1), 11–22. https://doi.org/10.1093/psyrad/kkac002
Taylor, J., Oka, T., Murakami, M. et al. Paving the way for precision treatment of psychiatric symptoms with functional connectivity neurofeedback. Transl Psychiatry 16, 291 (2026). https://doi.org/10.1038/s41398-026-04040-3