Welcome to a new episode about the psychology of willpower—why self-control feels so hard, how it gets depleted, and what that means for our everyday lives. I’m glad you’re here, because today we’re going to take a deep dive into the hidden mechanisms behind why we get so tired, why resisting temptations can feel impossible, and how the demands of modern life might be draining our mental energy in ways we don’t even realize. Whether you’re struggling to resist checking your phone, trying to stick to a diet, or just wondering why you feel so exhausted after a day at the office, this episode is for you. Let’s explore together how willpower works, why it sometimes fails us, and what we can do to manage this precious resource a little better.
Let’s start with a simple but unsettling idea: your brain lies to you. Everything you experience is filtered through layers of unconscious biases and neuroses. In fact, much of what you think and feel is shaped by hidden corners of your mind, and if you’re not careful, you can end up believing things about yourself and the world that just aren’t true. But if you pay close attention, there’s a real chance to understand yourself better—and maybe even change how you use your willpower.
So, what exactly is willpower? At its core, willpower is the ability to override immediate impulses in order to achieve a long-term goal. It’s what helps you say no to cake when you’re trying to eat healthier, or resist the urge to check your phone when you’re supposed to be working. In psychological terms, this is called self-regulation. And here’s the thing: willpower is a limited resource. Just like a muscle, it can get tired if you use it too much. If you spend your day constantly resisting temptations—whether it’s sweets, distractions, or emotional reactions—you’ll eventually run out of steam.
Researchers at the University of Oslo have found that willpower has declined dramatically in the Norwegian population. We live in a society where everyone expects their needs to be satisfied immediately. Think about how different things were for our parents or grandparents, who might have saved for years to buy a new sofa or apartment. Today, we want everything now. Professor Paul Kraft, who has spent over 20 years studying willpower, says that our ability to wait for rewards is much weaker than it used to be. And that has big consequences—not just for individuals, but for society as a whole.
Why do some people seem to have strong willpower, while others struggle? Part of it is genetic. Some people are born with more self-control, just like some people are born with more physical strength. But environment matters too—especially how we’re raised. And crucially, willpower is a finite resource. If you use it too much, you’ll get mentally exhausted and need to rest. Maybe we’re living in a world that demands so much self-control that we’re constantly stretching our willpower muscle to the breaking point.
Let’s look at an example. Imagine you’re trying to resist checking your phone every time it buzzes. Even if you succeed, it takes mental energy to ignore those notifications. You might feel proud for not giving in, but that effort drains your willpower, leaving you with less energy for the next challenge—like resisting dessert after dinner, or staying patient with your kids. Just like your physical muscles, your mental muscles can be trained to endure more over time, but they also need rest.
I didn’t always think much about willpower, until I read Roy Baumeister’s book on the subject. It opened my eyes to just how central this ability is in our lives. Baumeister describes willpower as a kind of energy that can be used up, and he backs it up with some fascinating experiments.
One story that really illustrates this is about the musician Amanda Palmer. She’s known for her wild, chaotic stage persona—think of a punk rock Lady Gaga or a provocative Madonna. But to create that kind of character, she needed an incredible amount of self-discipline. In 1998, when she was 22, she started performing as a living statue in Boston, dressed as an eight-foot-tall bride. She would stand perfectly still for hours, giving a rose to anyone who put money in her box. It sounds simple, but it’s actually one of the hardest things you can do—not physically, but mentally. Imagine standing there, staring at a fixed point, while people you know walk by, or someone tries to distract you, or even spits at you. She had to resist every impulse to react, to scratch her nose, to respond to provocation. After a few hours, she was completely drained—not physically, but psychologically. She felt empty, unable to think, needing to go home and collapse before doing it all again the next day.
What Amanda Palmer was really training was her willpower. And willpower, it turns out, behaves a lot like a muscle. Use it too much, and you get a kind of psychological inflammation—an exhaustion that leaves you irritable, tired, and unable to cope with even small challenges. If you overuse your willpower, you can end up with what Baumeister calls “ego depletion”—a state where you just don’t have the energy to regulate yourself anymore.
This brings us to a classic experiment by Baumeister, known as the “radish experiment.” Here’s how it worked: hungry participants were brought into a room filled with the smell of freshly baked cookies and chocolate cake. Some were told they could eat whatever they wanted. Others were told they could only eat radishes, not the tempting sweets. A third group had no food at all. Afterward, everyone was asked to solve a set of impossible puzzles. The people who had resisted the sweets—who had to use willpower to avoid the cookies and cake—gave up on the puzzles much faster than the others. They’d already used up their self-control just by resisting temptation.
This experiment shows that willpower isn’t just a metaphor—it’s a real, measurable resource. When you use it up, you have less left for other tasks. And that might explain why so many people feel exhausted after a day at the office, even if their work isn’t physically demanding. If you spend your day suppressing your emotions, trying to present yourself a certain way, or constantly resisting distractions, you’re draining your willpower tank.
Think about how this plays out in everyday life. Maybe you’re in an open-plan office, trying to appear competent and in control, even when you’re not feeling it. You’re constantly monitoring your impulses, making sure you say the right things, trying to be liked. All of that takes willpower. By the time you get home, you might feel completely wiped out, with nothing left to give your family or yourself.
There’s another experiment that really drives this home. Participants were asked to squeeze a handgrip for as long as they could—a simple test of endurance. Then, they watched a heartbreaking film about animals suffering from the effects of nuclear fallout. Some were told to suppress their emotions and show no reaction. Others were told to exaggerate their feelings. A third group just watched the film normally. Afterward, everyone tried the handgrip test again. The people who had suppressed or exaggerated their emotions did much worse—they’d used up their willpower trying to control their feelings, leaving them with less energy for the physical task.
This pattern shows up again and again. The more you try to control or suppress your emotions, the more you drain your willpower. And when your willpower is depleted, your feelings become more intense. Sadness hits harder, happiness feels more overwhelming, and even physical pain is experienced more acutely. If you’ve ever wondered why you feel hypersensitive after a tough day, this might be why.
So, what can we do about it? One strategy is to “own” your projects—to find ways to genuinely care about what you’re doing, so you don’t have to rely on willpower alone. If you love your job, you don’t need to force yourself to do it. If you can create routines that remove the need for constant decision-making, you’ll conserve your willpower for when you really need it.
This idea also helps explain why people in high-pressure jobs—like politicians—are more prone to making impulsive mistakes. Making tough decisions all day drains their self-control, leaving them vulnerable to temptation later on. It’s not that they lack willpower; it’s that they’ve used it all up.
The same principle applies to dieting and addiction. If you’re trying to eat less sugar, your willpower is already under strain. And since willpower is fueled by glucose, cutting sugar can actually make it harder to resist temptation. It’s a vicious cycle: the more you resist, the stronger your cravings become, and the less energy you have to keep resisting.
There’s a classic experiment called the “white bear” test. Participants are told not to think about a white bear—and of course, that’s all they can think about. The more you try to suppress a thought, the more it pops up. And after using all that mental energy to keep the thought at bay, people are less able to control their emotions in other situations. It’s a toxic spiral: the more you try to control yourself, the less control you actually have.
So, what’s happening in the brain? Studies show that the anterior cingulate cortex—a part of the brain that monitors conflicts between what you’re doing and what you want to do—lights up when you’re using willpower. When this area gets overworked, you feel exhausted and negative. If you’re constantly fighting against yourself—trying to be someone you’re not, or suppressing your true feelings—you’re burning through your mental energy.
This has real implications for how we structure our lives. If you keep tempting foods in the house, you’re constantly fighting the urge to eat them. If your phone is always within reach, you’re always resisting the urge to check it. Even if you succeed, you’re using up valuable willpower that could be better spent elsewhere.
Interestingly, research shows that people who are part of supportive communities—like religious groups or recovery programs—often have better self-control. Why? Because they outsource some of their self-regulation to external rules or social expectations. If you know your friends at AA are counting on you, it’s easier to resist temptation. If you believe a higher power is watching, you might be more likely to follow through on healthy habits. Over time, these external supports become internalized, turning good behaviors into automatic routines that don’t require as much willpower.
This idea also applies to parenting. Some experts argue that it’s better to teach children self-control than to focus solely on building their self-esteem. If kids grow up with clear rules and expectations, they don’t have to use as much willpower to regulate themselves—they can rely on the structure provided by their parents. Of course, there’s a balance to be struck; too much strictness can backfire, but too little can leave kids adrift, constantly having to make decisions and use up their limited self-control.
There’s even evidence that cultures with stricter rules and clearer expectations—like some Asian-American families—produce children who succeed more, even if their measured intelligence isn’t higher. The structure helps them conserve their willpower for the things that really matter.
So, what can we take from all this? First, recognize that willpower is a limited resource. If you spend your day fighting temptations, suppressing emotions, or trying to be someone you’re not, you’ll end up exhausted. Second, try to arrange your life so you don’t have to rely on willpower all the time. Remove temptations where you can. Build routines that make good choices automatic. Find ways to genuinely care about what you’re doing, so you don’t have to force yourself through sheer effort.
And remember, willpower can be trained, but it can also be overused. Like any muscle, it needs rest. If you push yourself too hard, you’ll end up depleted, irritable, and emotionally fragile. But with the right balance, you can build up your self-control over time, making it easier to handle life’s challenges without burning out.
As we wrap up today’s episode, I want to leave you with a few questions to reflect on. Where in your life are you using up the most willpower? Are there situations, people, or habits that drain your self-control more than you realized? What routines or structures could you put in place to make good choices easier and less taxing? And perhaps most importantly, are there areas where you could shift from doing things out of obligation to doing them out of genuine interest or passion?
Think about your daily routines. Are you constantly fighting against yourself, suppressing your true feelings, or trying to meet impossible standards? If so, how might you give yourself more permission to be authentic, to accept your emotions, and to focus your energy on what really matters to you?
Finally, consider how you might “train” your willpower in small, manageable ways—by establishing healthy habits, building supportive relationships, and giving yourself time to rest and recharge. Remember, willpower isn’t about being superhuman. It’s about understanding your limits, working with them, and finding smarter ways to use your energy.
Thank you for joining me on this exploration of willpower and self-control. I hope you’ve found some insights that you can apply in your own life, and maybe a bit of compassion for yourself when your willpower runs low. Until next time, take care of your mental energy—and welcome back for our next episode.
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