The Lucid Post

Psychology, emotional intelligence, and the patterns that shape who we are.

Overthinking

Psychology says people who always need to understand why something happened before they can move past it are not dwelling and they are not stuck - they are running a pattern-detection program a child built the year they learned that unexplained events were the most dangerous kind, and the exhaustion they carry at fifty is decades of a mind that was never given permission to stop solving

By Elena Marsh
white wooden framed glass window

The conversation that won’t stop

Last Tuesday I sat in a cafe with a friend who had been hurt by something her sister said at a family dinner three weeks earlier. She had already talked about it with her husband, her therapist, and me - twice. She knew the comment was small. She knew she was “making too much of it.” But she couldn’t stop circling it. Not the sting of it. The why of it.

“I just need to understand why she said it,” she told me, pressing her thumb into the side of her coffee cup. “If I could just figure out what she meant, I could let it go.”

Her husband had told her to drop it. Her therapist had given her coping tools. And here she was, exhausted and a little embarrassed, still turning that one sentence over like a stone she couldn’t stop examining for cracks.

I recognized her immediately. Not because I’m a psychologist who studies this pattern, though I am. Because I am this pattern. I have been this pattern my whole life. And I’m willing to bet you are too, or you wouldn’t still be reading.

What it looks like from the outside

From the outside, this looks like dwelling. It looks like someone who can’t move on. Who overanalyzes. Who takes things too personally and then compounds the problem by refusing to stop thinking about them.

People around you have a whole vocabulary for it. Let it go. Stop overthinking. You’re making yourself crazy. It’s not that deep.

And every time someone says that, you nod. You agree. You know they’re right - logically. But something in your nervous system won’t release its grip on the unsolved thing. It’s like trying to fall asleep with a door open somewhere in the house. You can tell yourself it’s fine. You can pull the covers up. But your body knows something is unresolved, and it will not let you rest until you find that door and close it.

This is not a personality flaw. This is not anxiety, though it often travels with anxiety. This is a pattern-detection system that was installed in childhood, and it is still running because nobody ever told it the emergency was over.

Where the program got written

Think about what it means to be a child in a home where emotional weather changed without warning.

One evening, a parent is laughing at the dinner table. The next evening, the same parent is silent and cold, and nobody explains what happened. No one says, “I had a hard day at work.” No one says, “I’m angry about something that has nothing to do with you.” The mood just shifts, like a channel changing, and the child is left standing in a room that was warm five minutes ago and is now freezing.

A 2019 study published in the Journal of Research in Personality found that children raised in emotionally unpredictable environments develop heightened pattern-detection abilities - they become exceptionally skilled at reading micro-expressions, detecting shifts in vocal tone, and scanning for environmental cues that predict emotional change. The researchers called this “adaptive vigilance.” Not a disorder. An adaptation.

That child learned something very specific: unexplained events are dangerous. Not loud events. Not violent events. The unexplained ones. Because if you don’t know why the mood shifted, you can’t predict when it will shift again. And if you can’t predict it, you can’t protect yourself.

The child who figures out why - who traces the silence back to the phone call, or the bill on the counter, or the look the other parent gave - that child gets a few hours of peace. They’ve solved the equation. They know the variable. They can relax, briefly, because the world makes sense again.

That is the program your mind is still running. Not because you’re broken. Because it worked.

The thing nobody tells you about “why”

Here’s what I want you to understand about your need for explanations: it was never really about the explanation.

It was about safety.

When you were seven and you figured out that your mother’s silence meant she’d talked to your grandmother, you weren’t conducting research. You were securing your perimeter. The “why” wasn’t intellectual curiosity. It was a child’s version of a threat assessment.

And now you’re fifty, and your coworker makes a strange comment in a meeting, and you spend three days trying to decode it. Not because the comment matters. Because your nervous system has flagged an unexplained social event, and it has activated the same program it has run since you were small - find the reason, neutralize the threat, restore predictability.

Dr. Gabor Mate has written extensively about how childhood coping mechanisms don’t expire - they just lose their context. The behavior that made you safe at seven makes you exhausted at fifty because the scale has changed but the operating system hasn’t. You’re running threat-assessment software on every interaction - a friend’s delayed text, a partner’s tone of voice, a colleague’s offhand remark - with the same urgency you once applied to a parent’s unexplained mood.

That’s not overthinking. That’s a survival program running on hardware that was never designed to sustain it for decades.

Why “just let it go” is the worst possible advice

When someone tells you to just let it go, they are asking you to do the one thing your nervous system has spent your entire life preventing you from doing. They are asking you to sit with not-knowing.

And for you, not-knowing isn’t uncomfortable. It’s existentially unsafe. It’s the open door. The unexplained silence. The mood that shifted without a reason. Not-knowing, for you, is the exact state your childhood mind identified as the precursor to danger.

A 2021 study in Frontiers in Psychology examined what researchers call “intolerance of uncertainty” and found that it is not a cognitive distortion. It is a learned emotional response, rooted in early experiences where uncertainty genuinely did predict negative outcomes. In other words, your inability to let things go without understanding them isn’t irrational. It’s a perfectly rational response to an environment that taught you uncertainty was dangerous.

The problem isn’t that you’re wrong about uncertainty being uncomfortable. The problem is that the environment has changed and the program hasn’t updated.

You are no longer a child in a house where silence predicted storms. You are an adult in a world where most unexplained things are genuinely benign. But your pattern-detection system doesn’t know that. It’s still scanning. Still solving. Still running every unexplained event through a filter that was calibrated for a very specific kind of danger that no longer exists.

The exhaustion you carry has a name

If you’re reading this and feeling a bone-deep tiredness that goes beyond sleep deprivation, I want to name what that is.

It’s computational fatigue.

Your mind has been running pattern-detection on every social interaction, every ambiguous comment, every unexplained change in someone’s behavior, for decades. That is an enormous amount of cognitive processing happening below the surface of your daily life. While you’re working, parenting, cooking dinner, your background processes are still churning through the unsolved things - the friend who cancelled plans without a clear reason, the email that was slightly shorter than usual, the look your partner gave you when you said that thing last Thursday.

Susan Cain, in her work on introversion and overstimulation, describes something similar - the inner world of people who process deeply. But what she doesn’t always name is the origin. The deep processing didn’t come from nowhere. For many of us, it was built in a specific workshop, during a specific period, for a specific purpose. And the exhaustion we feel now is the cost of running emergency-grade software on everyday problems.

You’re not tired because you’re weak. You’re tired because you’ve been doing a tremendous amount of invisible labor for a very long time, and nobody - including you - has ever acknowledged it.

The reframe that changed everything for me

I spent years in therapy trying to stop this pattern. Trying to learn to “let things go.” Trying breathing exercises and cognitive reframes and the serenity prayer and all the rest of it. And nothing worked, because I was approaching the problem wrong.

I was treating the pattern-seeking as the problem. As the thing that needed to be fixed.

It wasn’t until a therapist said something very simple that everything shifted. She said: “You don’t need to stop seeking patterns. You need to update the threat level.”

That’s the difference. The pattern-detection itself isn’t the enemy. It’s actually a remarkable cognitive ability - one that probably makes you exceptionally good at your job, at reading people, at anticipating problems before they materialize. Research published in Psychological Science in 2020 found that individuals with heightened pattern-recognition abilities show increased empathy, stronger social perception, and more accurate emotional forecasting. Your childhood didn’t just give you a burden. It gave you a skill.

The issue is the threat level assigned to each unsolved pattern. Your system is still running on the assumption that every unexplained event is a potential threat. And the work isn’t to dismantle the system. It’s to recalibrate it.

To say to yourself, gently, when you catch the program running: I see what’s happening. My mind has flagged this as unsolved, and it wants to find the reason because not-knowing used to be dangerous. But I am not seven. The silence does not predict a storm. I can let this one stay unsolved.

Learning to leave a door open

I won’t pretend this is easy. I won’t pretend I’ve mastered it. Some weeks I still spend three days trying to decode a friend’s tone in a two-sentence text message. Some weeks I exhaust myself searching for reasons that don’t exist, because the truth is that some things happen without reasons, and my nervous system finds that almost unbearable.

But I’ve gotten better at catching it. At noticing the moment when the program kicks in - that subtle tightening in my chest, the way my thoughts start circling, the way I reach for my phone to ask one more question that might give me the missing piece.

And in that moment, I try to do the bravest thing I know how to do. I try to leave the door open.

Not because the open door doesn’t bother me. It does. It probably always will. But because I am learning, slowly, that the house I live in now is not the house I grew up in. The open door is just an open door. The silence is just silence. The unexplained thing is allowed to stay unexplained.

If you are someone who carries this pattern - if you have spent your life needing to understand before you can release, if the people who love you have begged you to stop overthinking and you’ve wanted to scream that you would if you could - I want you to know something.

You are not difficult. You are not exhausting. You are not too much.

You are a person whose mind learned very early that understanding was the only form of safety available to you. And you have been diligently, faithfully, exhaustingly providing that safety to yourself for decades.

The fact that you’re tired doesn’t mean you’re failing. It means you’ve been working harder than anyone around you realizes, for longer than you probably remember, at a job you never applied for.

You are allowed to put it down now. Not all at once. Not perfectly. But slowly, one unsolved thing at a time, you are allowed to let the world be a little bit mysterious without treating the mystery as a threat.

You were a brilliant child. You built an extraordinary system. And now, finally, you are safe enough to let it rest.

Written by

Elena Marsh

Psychology writer and researcher

Elena Marsh is a psychology writer who spent over a decade studying clinical psychology before turning to full-time writing. She specializes in emotional intelligence, attachment patterns, and the quiet ways childhood shapes adult life. She lives in Portland, Oregon.

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