People who grew up with financial instability often feel anxious even after they become wealthy, because the brain encodes scarcity as a survival threat that no bank balance can fully override

When I was twenty-five, I remember standing in a grocery store in Melbourne holding two cans of tomatoes. One was eighty cents cheaper than the other. I stood there for what must have been two full minutes, calculating, turning them over in my hands, doing the math on something that, by any reasonable measure, didn’t require math. I had money in my account. I had a paying job at the warehouse. I could afford both cans and a dozen more. But something in my chest was tight, and my breathing had gone shallow, and I put the cheaper one in the basket and felt a wash of relief that made no sense for the situation.

I didn’t grow up wealthy. I don’t think anyone in my family would have described us as poor, either, but there was a particular texture to the household that I only learned to name much later. A kind of background hum. The fridge wasn’t empty, but there were conversations I could hear through walls about bills, about timing, about whether something could wait another month. My mother had a way of going very still when she opened certain envelopes. I learned to read that stillness before I learned to read most things about adults.

And by my mid-twenties, even when I was earning a steady income, even when there was enough, my body didn’t seem to believe it. The relief I felt choosing the cheaper can of tomatoes was real. Physiologically, measurably real. My shoulders dropped. My jaw unclenched. As though I’d avoided something dangerous.

It took me years to understand what was actually happening.

The architecture of scarcity in the nervous system

There’s a reason that financial anxiety doesn’t simply dissolve when circumstances improve. The brain encodes early experiences of scarcity the same way it encodes other threats to survival. Neuroscientist Sendhil Mullainathan and economist Eldar Shafir demonstrated in their research on scarcity that when people operate under conditions of not-enough (whether money, time, or food), the brain enters a kind of tunnel vision. Cognitive bandwidth narrows. The prefrontal cortex, responsible for long-term planning and emotional regulation, gets hijacked by the amygdala’s alarm system. The brain starts treating every decision as though survival is at stake, because at some point, it was.

What’s critical to understand is that this encoding doesn’t require a single catastrophic event. It can happen slowly, across years, through the accumulation of small signals: a parent’s tightened voice, the electricity getting cut for a day, wearing shoes that were too small because new ones weren’t in the budget yet. The brain is remarkably efficient at pattern recognition. It doesn’t need a crisis. It needs repetition.

And once that pattern is laid down, usually in childhood when the nervous system is most plastic, it becomes the brain’s default orientation. The world is sorted into enough and not enough, and the body prepares for the latter even when every external signal says otherwise.

I’ve written before about how childhood conditioning shows up in the body decades later. Financial scarcity works the same way. The body remembers what the bank statement can’t override.

Why wealth doesn’t feel like safety

You may have noticed this in yourself, or in someone close to you. The person who earns well but still can’t throw away leftovers. The person with significant savings who loses sleep over a minor unexpected expense. The person who checks their bank balance compulsively, sometimes multiple times a day, and still doesn’t feel settled afterward.

From the outside, this looks irrational. From inside the nervous system, it’s perfectly logical.

Research published in Psychological Science found that early-life socioeconomic adversity predicted increased cortisol reactivity and heightened stress responses in adulthood, independent of current income level. The participants who had grown up in financially unstable homes showed elevated physiological stress markers even when they were, by every measurable standard, financially secure. Their bodies were still responding to a threat that no longer existed in the external world but was very much alive in their internal one.

This is the part that can feel maddening. You do everything you were supposed to do. You earn. You save. You build the buffer you never had as a kid. And still, the anxiety sits right where it always sat, just below the sternum, humming like a frequency you can’t quite tune out.

I remember sitting on a stack of TV boxes at the warehouse during my lunch break, reading Thich Nhat Hanh, and thinking about money. I always thought about money. I thought about it the way some people think about weather, as a constant background calculation: what’s coming, what’s changing, how much is left. My physiotherapist at the time told me the knot between my shoulder blades was like concrete. I didn’t connect those things then. The thinking and the tension. I do now.

The invisible inheritance

What the ancient contemplative traditions understood, and what modern neuroscience is beginning to map in precise detail, is that we inherit more than genes from the environments that raised us. We inherit nervous system calibrations. Worldviews encoded at the level of the body.

A child who watches a parent go still at the sight of a bill learns something that no amount of later financial literacy can fully undo. The lesson isn’t intellectual. It’s somatic. This envelope is dangerous. This silence means something is wrong. When there’s a pause before someone answers a question about money, prepare yourself.

A study from researchers at Duke University found that childhood socioeconomic disadvantage was associated with altered amygdala reactivity and functional connectivity patterns that persisted into adulthood. The amygdala, the brain’s threat-detection center, had essentially been tuned to a higher sensitivity during development. It stayed tuned there.

This is why people who grew up with financial instability often develop patterns of compulsive self-reliance that look like independence but are actually survival strategies. You learn to need less. To make do. To never be the one who asks for something, because asking might reveal that there isn’t enough, and revealing that felt dangerous in ways you couldn’t articulate as a child.

I spent most of my twenties proud of how little I needed. I moved heavy furniture alone. I solved every problem myself. I wore that self-sufficiency like armor. What I didn’t understand was that the armor was forged in a household where needing things felt like a liability, and my body had simply carried that belief forward into a life where it no longer applied.

What the body is actually asking for

When I finally saw a therapist in my late twenties, one of the first things she noticed was that I talked about money the way other people talk about health scares. With a kind of low-grade vigilance that never fully switched off. She asked me when I’d last felt financially safe. I couldn’t answer. The question didn’t compute. Safety and money didn’t live in the same room in my mind.

She explained something that I’ve thought about almost every week since. The feeling of enough is a nervous system state, not a number. You can’t arrive at it by accumulation alone. The body needs to learn, slowly and through repeated experience, that the threat has passed. That this is a different chapter. That the silence before someone answers a question about money doesn’t mean what it used to mean.

This is deep work. It involves the kind of unraveling that can feel destabilizing, because the identity built around financial vigilance served a real purpose once. Letting it soften can feel like lowering your guard in a world that your nervous system still believes is unpredictable.

But the guard was built by a child. And the child was doing the best they could with the information they had.

The quiet recognition

I still notice myself doing the mental arithmetic in grocery stores sometimes. I still feel a small pull toward the cheaper option, even when it doesn’t matter. The difference now is that I notice the pull and recognize what it is. A signal from a younger version of myself who learned that every dollar was a small wall between the family and something frightening.

I don’t try to override it. I don’t tell myself it’s irrational. I’ve learned that the nervous system doesn’t respond well to being told it’s wrong. It responds to patience. To the slow, repeated demonstration that this moment is different from that one.

There’s a particular quality to the anxiety that comes from early financial instability. It’s quiet. It looks like responsibility, like prudence, like good financial sense. People might even admire it. But underneath the careful planning and the compulsive budgeting and the inability to enjoy a purchase without calculating its impact, there’s a child standing very still, listening to the tone of a parent’s voice, trying to figure out if everything is going to be okay.

No bank balance can fully answer that question. But recognizing where the question comes from, acknowledging that it belongs to a specific time and place in your history, that’s where something begins to shift. The answer doesn’t come from the account. It comes from the body, slowly, learning that it’s allowed to stand down.

I’m thirty-seven now. I live in Vietnam with my wife and daughter. The texture of my financial life is different from what it was in that Melbourne warehouse. But the body remembers. It always remembers. The work is in teaching it, gently and without rush, that remembering and being trapped there are two different things.