Atomic Habits: An Easy and Proven Way to Build Good Habits and Break Bad Ones

by James Clear

Your outcomes are a lagging measure of your habits. Your net worth is a lagging measure of your financial habits. Your weight is a lagging measure of your eating habits. Your knowledge is a lagging measure of your learning habits. Your clutter is a lagging measure of your cleaning habits. You get what you repeat.

If you’re having trouble changing your habits, the problem isn’t you. The problem is your system. Bad habits repeat themselves again and again not because you don’t want to change, but because you have the wrong system for change.

You do not rise to the level of your goals. You fall to the level of your systems.

The first layer is changing your outcomes. This level is concerned with changing your results: losing weight, publishing a book, winning a championship. Most of the goals you set are associated with this level of change. The second layer is changing your process. This level is concerned with changing your habits and systems: implementing a new routine at the gym, decluttering your desk for better workflow, developing a meditation practice. Most of the habits you build are associated with this level. The third and deepest layer is changing your identity. This level is concerned with changing your beliefs: your worldview, your self-image, your judgments about yourself and others. Most of the beliefs, assumptions, and biases you hold are associated with this level.

The more deeply a thought or action is tied to your identity, the more difficult it is to change it. It can feel comfortable to believe what your culture believes (group identity) or to do what upholds your self-image (personal identity), even if it’s wrong. The biggest barrier to positive change at any level—individual, team, society—is identity conflict. Good habits can make rational sense, but if they conflict with your identity, you will fail to put them into action.

The more you repeat a behavior, the more you reinforce the identity associated with that behavior. In fact, the word identity was originally derived from the Latin words essentitas, which means being, and identidem, which means repeatedly. Your identity is literally your “repeated beingness.”5

First, decide who you want to be. This holds at any level—as an individual, as a team, as a community, as a nation. What do you want to stand for? What are your principles and values? Who do you wish to become?

The formation of all habits is a feedback loop (a concept we will explore in depth in the next chapter), but it’s important to let your values, principles, and identity drive the loop rather than your results. The focus should always be on becoming that type of person, not getting a particular outcome.

Ultimately, your habits matter because they help you become the type of person you wish to be. They are the channel through which you develop your deepest beliefs about yourself. Quite literally, you become your habits.

This four-step pattern is the backbone of every habit, and your brain runs through these steps in the same order each time.

If a behavior is insufficient in any of the four stages, it will not become a habit. Eliminate the cue and your habit will never start. Reduce the craving and you won’t experience enough motivation to act. Make the behavior difficult and you won’t be able to do it. And if the reward fails to satisfy your desire, then you’ll have no reason to do it again in the future. Without the first three steps, a behavior will not occur. Without all four, a behavior will not be repeated.

This is one of the most surprising insights about our habits: you don’t need to be aware of the cue for a habit to begin.

The punch line is clear: people who make a specific plan for when and where they will perform a new habit are more likely to follow through.

The key is to tie your desired behavior into something you already do each day. Once you have mastered this basic structure, you can begin to create larger stacks by chaining small habits together. This allows you to take advantage of the natural momentum that comes from one behavior leading into the next—a positive version of the Diderot Effect.

Exercise. When I see a set of stairs, I will take them instead of using the elevator. ■ Social skills. When I walk into a party, I will introduce myself to someone I don’t know yet. ■ Finances. When I want to buy something over $100, I will wait twenty-four hours before purchasing. ■ Healthy eating. When I serve myself a meal, I will always put veggies on my plate first. ■ Minimalism. When I buy a new item, I will give something away. (“One in, one out.”16) ■ Mood. When the phone rings, I will take one deep breath and smile before answering. ■ Forgetfulness. When I leave a public place, I will check the table and chairs to make sure I don’t leave anything behind.

Habits are a dopamine-driven feedback loop.14 Every behavior that is highly habit-forming—taking drugs, eating junk food, playing video games, browsing social media—is associated with higher levels of dopamine. The same can be said for our most basic habitual behaviors like eating food, drinking water, having sex, and interacting socially.

For years, scientists assumed dopamine was all about pleasure, but now we know it plays a central role in many neurological processes, including motivation, learning and memory, punishment and aversion, and voluntary movement.15

It is the anticipation of a reward—not the fulfillment of it—that gets us to take action.

Before a habit is learned (A), dopamine is released when the reward is experienced for the first time. The next time around (B), dopamine rises before taking action, immediately after a cue is recognized. This spike leads to a feeling of desire and a craving to take action whenever the cue is spotted. Once a habit is learned, dopamine will not rise when a reward is experienced because you already expect the reward. However, if you see a cue and expect a reward, but do not get one, then dopamine will drop in disappointment (C). The sensitivity of the dopamine response can clearly be seen when a reward is provided late (D). First, the cue is identified and dopamine rises as a craving builds. Next, a response is taken but the reward does not come as quickly as expected and dopamine begins to drop. Finally, when the reward comes a little later than you had hoped, dopamine spikes again. It is as if the brain is saying, “See! I knew I was right. Don’t forget to repeat this action next time.”

The normal behavior of the tribe often overpowers the desired behavior of the individual. For example, one study found that when a chimpanzee learns an effective way to crack nuts open as a member of one group and then switches to a new group that uses a less effective strategy, it will avoid using the superior nut cracking method just to blend in with the rest of the chimps.9

When changing your habits means challenging the tribe, change is unattractive. When changing your habits means fitting in with the tribe, change is very attractive.

Conserve energy ■ Obtain food and water ■ Find love and reproduce ■ Connect and bond with others ■ Win social acceptance and approval ■ Reduce uncertainty ■ Achieve status and prestige

Desire is the difference between where you are now and where you want to be in the future. Even the tiniest action is tinged with the motivation to feel differently than you do in the moment. When you binge-eat or light up or browse social media, what you really want is not a potato chip or a cigarette or a bunch of likes. What you really want is to feel different.

I once heard a story about a man who uses a wheelchair. When asked if it was difficult being confined, he responded, “I’m not confined to my wheelchair—I am liberated by it.5 If it wasn’t for my wheelchair, I would be bed-bound and never able to leave my house.” This shift in perspective completely transformed how he lived each day.

It is easy to get bogged down trying to find the optimal plan for change: the fastest way to lose weight, the best program to build muscle, the perfect idea for a side hustle. We are so focused on figuring out the best approach that we never get around to taking action. As Voltaire once wrote, “The best is the enemy of the good.”

Motion makes you feel like you’re getting things done. But really, you’re just preparing to get something done. When preparation becomes a form of procrastination, you need to change something. You don’t want to merely be planning. You want to be practicing.

If you want to master a habit, the key is to start with repetition, not perfection. You don’t need to map out every feature of a new habit. You just need to practice it. This is the first takeaway of the 3rd Law: you just need to get your reps in.

Repeating a habit leads to clear physical changes in the brain.

The shape of these charts, which scientists call learning curves, reveals an important truth about behavior change: habits form based on frequency, not time.

In a sense, every habit is just an obstacle to getting what you really want. Dieting is an obstacle to getting fit. Meditation is an obstacle to feeling calm. Journaling is an obstacle to thinking clearly. You don’t actually want the habit itself. What you really want is the outcome the habit delivers. The greater the obstacle—that is, the more difficult the habit—the more friction there is between you and your desired end state. This is why it is crucial to make your habits so easy that you’ll do them even when you don’t feel like it. If you can make your good habits more convenient, you’ll be more likely to follow through on them.

Conversely, if an experience is not satisfying, we have little reason to repeat it. In my research, I came across the story of a woman who had a narcissistic relative who drove her nuts. In an attempt to spend less time with this egomaniac, she acted as dull and as boring as possible whenever he was around. Within a few encounters, he started avoiding her because he found her so uninteresting.

We are not looking for just any type of satisfaction. We are looking for immediate satisfaction.

most people know that delaying gratification is the wise approach.

it’s possible to train yourself to delay gratification—but you need to work with the grain of human nature, not against it.

The vital thing in getting a habit to stick is to feel successful—even if it’s in a small way.

Habit tracking is powerful because it leverages multiple Laws of Behavior Change.

The mere act of tracking a behavior can spark the urge to change it.

When we get a signal that we are moving forward, we become more motivated to continue down that path. In this way, habit tracking can have an addictive effect on motivation. Each small win feeds your desire.

This is the most crucial benefit of all. Tracking can become its own form of reward. It is satisfying to cross an item off your to-do list, to complete an entry in your workout log, or to mark an X on the calendar. It feels good to watch your results grow—the size of your investment portfolio, the length of your book manuscript—and if it feels good, then you’re more likely to endure.

You don’t realize how valuable it is to just show up on your bad (or busy) days. Lost days hurt you more than successful days help you. If you start with $100, then a 50 percent gain will take you to $150. But you only need a 33 percent loss to take you back to $100. In other words, avoiding a 33 percent loss is just as valuable as achieving a 50 percent gain. As Charlie Munger says, “The first rule of compounding: Never interrupt it unnecessarily.”

“My suggestion was quite simple,” he wrote in 1981. “Put that [nuclear] code number in a little capsule, and then implant that capsule right next to the heart of a volunteer. The volunteer would carry with him a big, heavy butcher knife as he accompanied the President. If ever the President wanted to fire nuclear weapons, the only way he could do so would be for him first, with his own hands, to kill one human being. The President says, ‘George, I’m sorry but tens of millions must die.’ He has to look at someone and realize what death is—what an innocent death is. Blood on the White House carpet. It’s reality brought home.

In short: genes do not determine your destiny. They determine your areas of opportunity. As physician Gabor Mate notes, “Genes can predispose, but they don’t predetermine.”7 The areas where you are genetically predisposed to success are the areas where habits are more likely to be satisfying. The key is to direct your effort toward areas that both excite you and match your natural skills, to align your ambition with your ability.

Openness to experience: from curious and inventive on one end to cautious and consistent on the other. Conscientiousness: organized and efficient to easygoing and spontaneous. Extroversion: outgoing and energetic to solitary and reserved (you likely know them as extroverts vs. introverts). Agreeableness: friendly and compassionate to challenging and detached. Neuroticism: anxious and sensitive to confident, calm, and stable.

Boiling water will soften a potato but harden an egg. You can’t control whether you’re a potato or an egg, but you can decide to play a game where it’s better to be hard or soft. If you can find a more favorable environment, you can transform the situation from one where the odds are against you to one where they are in your favor.

“10 years spent learning, 4 years spent refining, and 4 years as a wild success.”

The Goldilocks Rule states that humans experience peak motivation when working on tasks that are right on the edge of their current abilities. Not too hard. Not too easy. Just right.

“At some point it comes down to who can handle the boredom of training every day, doing the same lifts over and over and over.”

Men are born soft and supple; dead, they are stiff and hard. Plants are born tender and pliant; dead, they are brittle and dry. Thus whoever is stiff and inflexible is a disciple of death. Whoever is soft and yielding is a disciple of life. The hard and stiff will be broken. The soft and supple will prevail. —LAO TZU