Your Brain Wasn’t Designed for Modern Life

One of the most humbling realizations I’ve had over the past several years is that human beings are far less rational than we like to believe.

We know what we “should” be doing: we should stop smoking, eat more vegetables, exercise regularly, spend less time on our phones, save more money, and stay in closer contact with the people we love. Most of us don’t need another article reminding us of these things. Information is rarely the problem. Yet despite knowing what is “good” for us, many of us continue making choices that seem to contradict our own goals.

For a long time, I think I explained this the way many people do. We tell ourselves we need more discipline. More motivation. Better habits. We promise that next Monday, next month, or next year will be the moment we finally get our act together.

The more I learn about neuroscience, however, the more compassion I have for myself and for my clients. I increasingly believe we are not failing because we are weak, lazy, or unintelligent. I think many of us are asking our brains and bodies to function in an environment they were never designed for.

Our brains evolved to solve immediate problems. For most of human history, the questions we had to answer were much more basic: “Is there danger nearby? Is there enough food? Can I trust this person? Do I belong to the group? Where can I find shelter?” Our nervous systems developed to prioritize safety, connection, and survival.

But, modern life asks something very different of us.

Before I even get out of bed in the morning, I may have already checked my phone, looked at my calendar, responded to a text, glanced at the news, remembered an unpaid bill, debated whether I have time to exercise, and started mentally organizing the rest of my day. By the time I make coffee, my brain has already made dozens of decisions, many of them so automatic I barely register them.

We are constantly deciding what deserves our attention, what to ignore, what to buy, who to respond to, whether we are behind, whether we should be doing more, whether we should save more, spend less, invest differently, take the job, leave the job, start the business, go on the trip, or finally buy the thing sitting in our online cart.

No wonder we are tired. This is cognitive fatigue. Cognitive overwhelm. Whatever you call it, our brains are maxxed out.

There is a reason people like Steve Jobs famously wore essentially the same thing every day. It was not because he lacked creativity. It was because reducing small daily choices can preserve mental energy for bigger decisions. Most of us may not want a signature black turtleneck, but the point stands: our cognitive resources are limited.

The problem is that modern life does not treat our attention as limited. Every app, advertisement, algorithm, and notification competes for it. We are told to optimize our sleep, track our steps, improve our finances, parent consciously, eat cleanly, maintain friendships, respond quickly, build wealth, heal trauma, and remain calm while the world burns around us.

When you put it that way, the question becomes less “Why can’t I be more disciplined?” and more “How can I stop asking my brain to do something it was never designed to do?”

This is especially relevant when it comes to money.

So much of the financial advice out there assumes we are making decisions from our most thoughtful, regulated selves. Spend less than you earn. Save automatically. Invest consistently. Avoid lifestyle creep. Don’t buy things you don’t need. All reasonable advice. But advice often fails when it does not take into account the body and nervous system of the person receiving it.

When we are overwhelmed, anxious, lonely, sleep deprived, grieving, burned out, or simply mentally fatigued from making decisions all day, we are usually not asking, “What is the wisest long-term financial choice?” We are asking, often without realizing it, “What will help me feel better right now?”

Sometimes that looks like buying something we do not need. Sometimes it looks like avoiding the credit card statement. Sometimes it looks like ordering takeout because the thought of making one more decision about dinner feels impossible. Sometimes it looks like staying in a job that drains us because uncertainty feels more threatening than unhappiness.

These behaviors are not always irrational when viewed through the lens of a nervous system trying to regulate itself. They may not serve our long-term goals, but they often make emotional sense in the moment.

I also see this around financial milestones. Many of us quietly believe that once we reach a certain number, we will finally feel safe, successful, free, or enough.

I have done this myself.

After years of carrying six figures of student loan debt, I imagined what it would feel like to finally make that last payment. I pictured relief, freedom, maybe even some emotional version of balloons falling from the sky. When the day came, the loan website offered a brief congratulatory animation. I sat there, watched it, and thought, “Well, that’s nice.”

Less than an hour later, I logged into my computer, saw a client, and wondered whether I had enough time to make myself a proper lunch.

That was it.

The moment mattered, but it did not transform me into a permanently peaceful person. My brain simply moved on to the next thing to solve.

I have seen versions of this with clients who reach a certain income, pay off debt, receive a promotion, sell a business, publish a book, win an award, or finally get to the number in the bank account they thought would make everything feel different. These achievements can be meaningful. They should be acknowledged. But the emotional high is often shorter than we expect.

This is sometimes called the arrival fallacy: the belief that once we arrive at a particular milestone, we will finally feel the way we have been wanting to feel. But our brains adapt quickly. The finish line keeps moving. We are not Scrooge McDuck swimming through a vault of coins. We are humans who still have to answer emails, make lunch, deal with family dynamics, and figure out what comes next.

So what do we do with all of this?

I do not think the answer is to try harder. Most of us have already tried that.

Instead, I think the work is to design our lives around how our brains actually function, not how we wish they functioned.

For example, If saving money matters, put it on automatic. Set aside an amount that goes into savings or an account you do not look at regularly. If you receive a raise or promotion, consider increasing your automatic savings before your lifestyle quietly expands to absorb the difference. Future you will probably thank current you.

If shopping is a vulnerability, make temptation less available. Unsubscribe from marketing emails. Delete shopping apps. Pause before buying the extra $25 item just to avoid a $5 shipping fee. Our brains love the feeling of “saving money” through a sale, even when we are actually spending money we did not intend to spend.

If future planning feels too abstract, find ways to attach some satisfaction to the present process. For some people, future thinking is hard, especially when they are just trying to get through the day. So make the process visible. Track progress. Celebrate small wins. Give yourself evidence that something is changing, even if slowly.

When I was building my private practice, I kept a running list of people I spoke with, referrals I received, money I made that week, and possible leads. It helped me remind the critical part of my brain that I was trying. I was moving. Something was happening, even when it felt slow. Over time, those small moments became momentum.

And perhaps most importantly, practice self-compassion.

This is not the same as letting yourself off the hook. Self-compassion is not saying, “It doesn’t matter.” It is saying, “This is hard, I am human, and I can try again.”

If you make a financial choice you regret, berating yourself rarely helps. “I’m terrible with money” does not create insight. It usually creates shame, avoidance, and more of the same pattern. A more useful response might be, “Okay, I can see what happened there. What was I needing in that moment? What can I do differently next time?”

That kind of curiosity keeps us in relationship with ourselves. Shame tends to shut the whole system down.

I think of the viral videos of Olympic gold medalist Alysa Liu in early 2026 saying, “I love a challenge. I love the process.” When I first heard that, I remember thinking, “Really? Are we sure the gold medal is not also nice?!”

But when I really sat with her commend, I saw that Alysa was naming something many of us spend years learning: the outcome matters, but our lives are mostly made of process. The debt payoff, the promotion, the number in the account, the award, the milestone—these are moments. Important moments, perhaps. But moments nonetheless.

Most of life happens in the thousands of ordinary decisions before and after them.

Our brains may not have been designed for modern life. But once we understand that, we can stop treating every struggle as a personal failure. We can build systems, reduce unnecessary friction, practice compassion, and create environments where our better choices become easier to access.

Maybe the goal is not to become perfectly rational.

Maybe the goal is to become a little more honest about what it means to be human.