The Power of Habit by Charles Duhigg [Book Summary]


You’ve decided: you won’t take cigarettes anymore! Or maybe you won’t have fast food! You managed it smoothly for some weeks. You’re pleased with yourself. However, then, at some point, the craving abruptly overwhelms you – and,  soon enough, you turn to former habits.

Seems familiar? If that is the case, you are familiar with the strength of habits.

However, from which place does this strength of habits emanate from? We will discover in the following that habits are placed deep in the minds and spirits of humans and impact their lives in various manners. Als, although thanks to them our lives very much easier –just consider if you needed to work out the way to unlock doors each time you came across one – habits may as well bring about issues and even  destroy lives

Fortunately, by knowing how habits function, you can start to defeat their power. Therefore, let’s explore the planet of habits!


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Chapter 1 – Habits have been easy loops of signal, pattern, a prize that protects energy.


Some scholars at MIT during the year 1990s were observing mice in order to know the way habits are developed in our minds. The mice needed to look for a means to get to some chocolate that was put at the edge of a labyrinth shaped as T. By making use of special tools, the activity of mice’s brains could be observed by the researchers as they smelled in the path to chocolate.

At first, at the time mice were placed in the labyrinth, brains’ performance peaked. The mice could perceive the chocolate, therefore, they started looking for it. At the time scholars did the experiment again, they discovered something fascinating.

When mice progressively understood the place of the chocolate and recalled the way to reach there – keep straight, and have a left direction – activity of their brains reduced.

The procedure of changing a series of actions to an automatic habit is called “chunking,” it lays the foundation of every construction of habits. Its developmental part is obvious and vital: it lets our brains protect energy and do normal tasks well.

Therefore, even a difficult activity that needs attention at first, such as looking for some chocolate in the labyrinth or going back on the driveway, ultimately turns into an easy habit. As a matter of fact, as stated by a 2006 article that was conducted by a scholar at Duke, as much as 40% of the things we do every day have been created by habits.

Generally, every habit could be split into a 3-piece loop:

Firstly, you perceive an outside cue –for instance, a sound of an alarm. This forms a whole pinnacle in the brain’s activity since the brain determines the habit that is right for the condition.



Afterward, there is the routine, which is the activity people have been accustomed to doing when encountered with this specific cue. You go to the bath and then clean your teeth while the brain is nearly on autopilot.

Lastly, you receive a reward –which is a sense of achievement and, in that situation, you get a reward for your mouth’s feeling of the mint. Your whole brain performance raises once again when the brain marks the successful attainment of the task and strengthens the connection between the signal and the pattern.

Habits are very elastic. For some situations, people that have huge brain harm may still stick to their former habits. Think of Eugene, someone with extreme brain damage as a result of encephalitis. When he was told to indicate the door that leads to his cooking area from the sitting area, he cannot do that. However, when he was inquired what to do when he became hungry, he went directly to the cooking area and brought a cup of nuts taken from a cabinet.

He was able to do this since getting and keeping habits occur around our basal ganglia, which is a little neurological structure deep-rooted in the human brain. Although the remaining part of his brain was damaged, this part could work properly.

Unluckily, this resilience entails that, although you effectively quit a habit, such as smoking, you are still at the risk of going back to the habit.


Chapter 2 – Habits stay since they form a craving.


Think of this illustration: each afternoon last year, you purchased from the cafeteria at your work and ate a tasty, sweet chocolate cookie. Name it as only a reward for your hard day at work.

Unluckily, as some friends mentioned, you’ve begun to add weight. Therefore, you chose to quit the habit. However, is there a way to think you would sense that initial afternoon, going near the cafe with no cookies? Chances are, you would have “just 1 more” or you would turn back home with a clearly cranky mood.

Quitting habits is difficult since you form a need for the prize you get with the finish of that habit’s loop. A research that was conducted in 1990 by Wolfram Schultz, the neuroscientist reveals how this functions in our brains. Schultz was observing activities of the brains of macaque monkeys, one called Julio, a monkey that was grasping to do numerous activities. In a study, Julio was put before a monitor, on a chair.  Anytime some colorful patterns were revealed on the monitor, Julio’s work was pulling a bar. Anytime he did that, a blackberry juice drop (Julio liked blackberry juice) dripped down to his lips via a tube.

initially, Julio didn’t really concentrate on the screen. However, when he occurred to pull that bar at the appropriate time; hence eliciting the prize, the activity of his brain peaked, revealing a powerful satisfaction reaction.



As Julio progressively understood the link between viewing the shapes shown on the monitor and the pull of the bar and receiving a drop of blackberry juice, the monkey didn’t just stare at the screen; however, Schultz realized that, once the shapes came on, a peak in the activity of his brain related to the time he really got the reward. Meaning, the monkey’s brain had started waiting for the prize. This expectation has been the neurological foundation of yearning and assists clarify the reason habits have been really powerful.

Then, Schultz changed the experiment. In this new experiment, when the monkey pulled the bar, either there would be no juice or would drop in a thinner form, mixed with water. Schultz saw in Julio’s brain neurological patterns related to desire and disappointment. Julio became absolutely down at the time he did not receive the reward, similar to how you would when you skipped your favorite day-finisher cookie.

Luckily, that craving functions for creating good habits too. For example, a 2002 research that was conducted in the NMSU revealed that individuals who succeed to exercise are really hungry for something coming from that, maybe an endorphin hustle to the brain, feelings of achievement, or the reward they give themselves after exercising. What hardens the habit is this craving; just signals and prizes are not sufficient. 

Due to the force of our habit, it shouldn’t be surprising that firms put too much effort to know and form that kind of hunger in customers. An inventor of this method has been Claude Hopkins who promoted Pepsodent dentifrice when numerous other dentifrice labels had become unsuccessful. He gave a prize that formed craving: which are, the fresh, tingling feeling that we suppose the toothpaste to possess. That feeling doesn’t just “prove” that his toothpaste functioned in users’ minds; however, that became something that they start to crave.


Chapter 3 – For you to transform your habits, replace the routine with a different thing and trust the transformation.


As anybody attempting to quit cigarettes will say to you, at the time the hunger for nicotine comes, it is difficult to resist. That’s is the reason the major rule for giving up on habits is this: do not attempt to ignore the craving; change it. Meaning, you have to retain those signals and rewards; however, transform the pattern that happens according to the craving.

Various studies on ex-smokers have revealed that, by knowing the signals and prizes around smoking habits and changing the pattern with something that owned a related reward, like push-ups, having some Nicorette, or basically resting for some time, the probabilities of remaining without smoke rises greatly.

Alcoholics Anonymous (AA), is an institution that makes use of this tactic to good impact, which might have assisted as much as 10,000,000 alcoholics attain abstinence.

AA questions participants to write down precisely what they are hungry from having alcohol. Normally, reasons such as resting and accompaniment are very more significant than real intoxication. Then, AA offers new patterns that fix those cravings, like going for meetings and discussing with supporters for accompaniment. The concept here is to change alcohol with something that is less detrimental.

But, research on the member of AA reveals that even though this approach works effectively generally, doing that itself is not sufficient. During the initial 2000s, a team of scholars at Alcohol Research Team of California observed a different style in the interviews with the members of the AA. A common reply was that their approach of replacing habits did miracles; however, once a stressful incident happened, the former habit was basically really powerful to stand, irrespective of the duration the interviewee had been part of that project.



For instance, one alcoholic that is recovering was not drunk for several years and his mom phoned him to tell him she got cancer. Finishing the call, he left his office and headed straight to a pub, and then,  according to him, was “really  very boozed for the following two years.”

More research has shown that the individuals who stand out against setbacks and stay sober usually depend on faith. This is the reason God and spirituality appear importantly in AA beliefs. However, it’s not essentially the religious aspect itself that assists people to remain sober. Also, trusting in God assists participants to trust the likelihood of transformation for the person themself, which allows them to be stronger even when met with stressful life situations.


Chapter 4 – One can accomplish change by concentrating on root habits and accomplishing small victories.


In 1987, when Paul O’Neill, the previous government bureaucrat, was made the chief executive officer of Alcoa, an ailing aluminum corporation, investors were uncertain. Also, O’Neill didn’t make the situation better at the time, while he was in a capitalist gathering in a classy luxury inn in Manhattan, stated that, instead of concentrating on incomes and profits, he had the intention to make the workplace secure as his top priority. One of the investors phoned his consumers straight away and he told his client, “The board chose a mad hippie in control and he will ruin the corporation.”

O’Neill attempted to clarify his judgment to his lukewarm investors. He stated that no number of speeches would decrease injury incidences at Alcoa. Definitely, the majority of the CEOs asserted that they care about office security. However, just talking could not bring about the construction of a habit throughout the whole corporation, and this is what is needed for actual change.

O’Neill understood that there were habits in organizations. Also, he was aware that altering an institution’s course is a situation of altering its habits. Also, he knew that not every habit is the same. Some habits, called the root habits, have been more significant than others since sticking to them forms favorable impacts that extend into other aspects.

By maintaining that the safety of employees should be the first priority, managers and workers would need to contemplate how the process of manufacturing could be more secure and the way safety recommendations could be best communicated to everybody. The outcome would be an extremely streamlined, and therefore rewarding, manufacturing institution.



In spite of the capitalists’ first skepticism, O’Neill’s method was shown a big success. In 2000, during the period when O’Neill retired, Alcoa’s yearly net revenue had raised five times.

Root habits may assist people to change, as well. For example, research shows that medical specialists have a difficult time making obese people make a big transformation in the way of their life. But, when patients concentrate on growing one root habit, like having a thorough eating book, other favorable habits begin to develop too.

Keystone habits operate by offering small victories–meaning, early victories that are reasonably easy to accomplish. Cultivating a root habit assists you trust that development is feasible in other aspects of life, as well, which can initiate a waterfall of favorable transformation.


Chapter 5 – The most significant keystone habit is Willpower.


During the year 1960, scholars at Stanford performed what would turn out into a really popular study. A big team of children who are four years old was invited, one after the one, to an office. The office had a desk with one marshmallow on top.  A researcher offered each kid an option: the first option was to have the marshmallow at that exact time and the second option was to wait for some time and get 2 marshmallows rather than 1. Then, the researcher went out of the office for fifteen minutes. Just nearly 30% of the kids succeeded in not eating the marshmallow when the researcher was not there.

However, this is a fascinating aspect. Years after, when, the researchers trailed down the kids that participated in the research, that are grown into matures, they discovered that the children who had shown the biggest determination and expected the complete fifteen minutes had gotten the greatest grades at school, and more famous averagely and would have a less risk to get drug dependency. It appeared that Willpower was a rooted habit that might be used in other aspects of life as well.

Additional current studies have revealed similar outcomes. For example, a study that was conducted in 2005 among eighth-graders revealed that students showing greater grades of willpower got greater grades and there is a higher possibility for them to attend selective schools.

Therefore, willpower is an important habit in our lives. But, as you may have realized when you have ever attempted to begin moving more, the determination can be extremely unpredictable. At times, going to the gym looks easy; on some other days, leaving bed is close to impossible. What is the reason for that?

As a matter of fact, willpower is really just like our muscles: they may exhaust. If you drain it by focusing on, for instance, a tiresome spreadsheet in your office, you may not have any more willpower when you reach home. However, the comparison is more: by doing habits that need resolution –for instance, following a harsh diet – one may really increase willpower. Name it the “willpower exercise”.



Other determinants as well can impact your determination. For instance, Starbucks discovered that, on the majority of the days, each of its workers had the determination to cheer and be happy, irrespective of the way they actually felt. However, when something makes them feel pressured – for instance when a client started shouting– they would lose their temper soon. According to research, company executives decided that whether coffee makers cognitively got ready for unpleasant circumstances and prepared how to defeat those, they might gather sufficient willpower to stick with the organization even at times they feel pressured.

To assist them, Starbucks formed the suitably called LATTE approach, which describes a set of stages to take when in demanding circumstances: Listening (the L) to the client, Acknowledging (the A) their criticism, Taking (the T) action, Thanking (the second T) the client, and, finally, Explaining (the E) the reason why the problem occurred happened. By repeating this tactic continuously, Starbucks coffee makers learn precisely the things to do in case stressful circumstances occur and can remain calm.

Following research has revealed that when autonomy is lacking, this impacts willpower negatively. When individuals do a thing since they are requested to do it instead of by selection, their muscle of willpower would become exhausted much faster.


Chapter 6 – Institutional habits may be risky; however, they can be altered by a crisis.


During the year 1987, in November, a traveler in London around King’s Cross train station went to meet a ticket taker and told he had witnessed some burning tissue at one an escalator of the building. Instead of looking into the issue or just informing the department in charge of fire security, the ticket taker didn’t do anything. He basically went back to the office, assuming it was another person’s duty.

This was maybe not really shocking. Duties in managing the underground of London were split into numerous sharp fields, and, due to that, workers had created an institutional habit of remaining within the limits of departments. For tens of years, an elaborate, ordered structure of managers and directors, each extremely defensive of his superiority, had appeared. The approximately 20,000 workers of the Underground of London didn’t know how to intrude in other’s territory.

Beneath the surface, the majority of the organizations are just like this: battlefields whereby people shout for strength and prizes. Therefore, to maintain peace, we form specific habits, like minding our own business.

Immediately following the ticket taker went back to his office, as expected, a big fire broke out in the ticket office. However, nobody there understood how to make use of the fire-extinguishing structure or owned the power to make use of the sprinkler tubes. The savers, who were ultimately called in by numerous staff at the station after long attempts of errors to take action, reported passengers really severely burned that when their skin was touched it came off. Eventually, 31 people died.



The error at the core of this disaster was that, in spite of its difficult structure of responsibility issuing, no worker or field at the Underground of London had overview accountability for saving passengers. 

However, even that kind of disaster may have a break in the clouds: disasters provide an exceptional opportunity to improve institutional habits by giving a feeling of urgency.

That is the reason great leaders usually actively lengthen a feeling of crisis or further intensify it. While looking into the fire issue of King’s Cross, Desmond Fennel, a special investigator discovered that a lot of possibly lifesaving alterations had been suggested years before; however, none of it had been put in place. When Fennel stumbled upon an aversion to his recommendations, as well, he changed the entire inquiry to a media event – a disaster that allowed him to carry out the changes. At the moment, all stations have a director whose key duty is to ensure passenger safety.


Chapter 7 – Companies make the most of the habits during marketing.


Imagine yourself going to a supermarket. What would be the initial thing you meet? In every odds, it’s fresh vegetables and fruits, arranged in piles. When you think of that for some time, it is not sensible. As vegetables and fruits are soft and have a tendency to be spoilt easily by the other things in the trolley, they should be put nearer to the checkouts. However, a long time ago marketers discovered that, when they start our journey by putting in fresh and healthy food in our trolley, we’re very likely to purchase unhealthier foods, such as junk foods and fast foods, as we carry on to buy other things.

This may look really apparent. However, retailers have discovered far subtler methods to sway customers’ buying habits. For instance, this is an astonishing reality: the majority of the people automatically turn to the right-hand side when going into a store. This is the reason why retailers place the majority of profitable goods on the right side of the entry.

But, as refined as these approaches are, they have a huge disadvantage; all of them are standard and do not consider the distinctions in the way a specific customer buys products. But, for some time, progressively advanced technology with data gathering made it likely to target consumers with wonderful accuracy. The American retailer Target is a true expert of it, which provides a lot of consumers yearly and gathers big data about them.

During the initial times of 2000, the corporation chose to make use of the complete power of that data for targeting a specific part of people, long understood to be profitable, those are the new parents. But, in order to have an edge on its rivals, Target intended to do beyond the new parents market; it would like to engage pregnant parents before they even gave birth. In order to achieve this, it starts to know how pregnant women buy things.

Eventually, Target’s inspection functioned really effectively that it defined a pregnant young woman who had not informed her family members yet about her issue. Target gave her coupons that are baby-related, provoking her dad to visit the regional Target director angrily: he said: “She’s still a high school student.” “Are you attempting to hearten her to become pregnant?!” At the time the reality was revealed, that was the embarrassed dad’s time to make an apology.



However, Target immediately understood that people hated being watched. In order for those baby promotions to be effective, it looked for a smart method to hide them among random and dissimilar promotions for products such as wine glasses and lawnmowers; the proposals had to look like the related, untargeted ones.

Certainly, when attempting to sell something that is novel, corporations will try their greatest to shape it to look familiar. For instance, DJs of radios can assure a fresh song turns out to be common by putting it in between two current popular songs. Fresh habits or goods are very probable to be acknowledged when they do not look new.

Target had many flacks for this conquering method to marketing; however, that doesn’t signify that this was not a great success. Mostly as a result of working on targeting pregnant females, the corporation’s incomes increased from 44- in 2002 to 65-billions of USD in the year 2009.


Chapter 8 – Actions are produced from strong bonds new habits and peer pressure.


During the year 1955, Rosa Parks, a black female, didn’t quit her bus ticket for some white male in Alabama. They seized and punished her for that, and the occurrences that came after shaped her as an icon of civil rights.

Fascinatingly, her situation, although it is the most popular, was not exceptional neither was it the first. A lot of other people had been arrested already due to the same rationale. Therefore, what made Parks’s arrest trigger a bus embargo that remained for more than a year?

Firstly, Rosa Parks had been particularly admired in society and had a remarkably broad set of peers. She was part of several societies and associations and was related to various types of people, like professors and farmers. 

For example, at the local NAACP chapter, she worked as a secretary and was profoundly part of a teenage institution at a church near where she stayed and used her free time offering families that are poor services for making dresses, all during still looking for time for making gown amendments for teenage debutantes from rich white families. As a matter of fact, she had been really dynamic around her society that her partner at times would mention that she had more meals at potlucks than their home.

She possessed what is referred to as close, powerful ties in sociology studies–which is, direct relationships with a lot of individuals from various social parts of her society. These ties didn’t only set her free from the jail; however, they also spread the news about her seizure all through Montgomery’s social strata; therefore, initiating the embargo of busses.



However, only her friends could not continue a long boycott. Moving to peer pressure. Additionally, to strengthen ties, social circles also have weak ties, which are acquaintances instead of friends. Pressure from peers is usually exerted through weak ties. At the time an individual’s bigger connection of peers and relatives back up action, it would be more difficult to quit.

Ultimately, dedication to the embargo started decreasing around the black society, as city authorities started passing new carpooling guidelines to turn life with no bus into a hard one. This is at the time the last aspect was included: a speech said by Dr. King Jr. encouraging nonviolence and telling participants to accept and excuse their persecutors. From his speech, people started to develop new habits, like individually planning church gatherings and protests at peace. The movement was a power that is self-propelling.


Chapter 9 – We are accountable for transforming our habits.


Brian Thomas choked his partner to kill one night in the year 2008. Worried, he quickly surrendered himself and had accused of murder. His justification? He was going through something that scientists call sleep murders.

Studies have revealed that different from sleepwalking, whereby people might leave their beds and begin acting out desires; however, at the time a person has such a thing, their brain efficiently closes, leaving just the really primitive cognitive areas working.

Because of being in this condition, Thomas assumed he was choking a thief who was assaulting his wife. The defense claimed in court that the moment Thomas assumed a person was harming his partner, it initiated an automatic reaction– an effort to keep her safe.  Meaning, he continued a habit.

About the same period, the casino place Harrah’s sued Angie Bachman for 500,000 USD in unresolved gambling debts. She was sued following her gambling away the house as well as her millions of dollars of property.

In a law court, Bachman claimed that she was recurring a habit. Gamble came with a good feeling; therefore, when Harrah’s gave her enticing deals for free of charge journeys to the place, she could not refrain from. (Bear in mind that Harrah’s was aware that she was obsessive in gambling that was in bankruptcy.)



Eventually, Thomas was found not guilty and a lot of people, as well as the judge of the trial, showed an extreme liking to him. Conversely, Bachman did not win the case and became the victim of the public laugh.

Thomas, as well as Bachman, could both reasonably assert that: “That was not me but was my habit!” Therefore, what is the reason why just one of those was not found guilty?

Basically, as soon as we know of a detrimental habit, it is now our duty to fix it and transform that. Thomas wasn’t aware that he would cause pain to someone during sleep. But, Bachman, was aware that she owned the habit of gambling and might have evaded Harrah’s proposals by taking part in an exclusive procedure that would have forbidden gambling corporations from advertising to her.


The Power of Habit: Why We Do What We Do in Life and Business by Charles Duhigg Book Review


Abiding by routines is not just a significant aspect of our lives; however, it is also a significant aspect of institutions and corporations. Every habit owns a signal- pattern- prize loop; the easiest method for changing that is replacing another thing with this pattern while at the same time retaining the signal and prize. In life, attaining long-lasting change is hard; however, it may be accomplished by concentrating on significant keystone habits like willpower.

Lay your bed each day.

With these chapters, you realized that not every habit is the same; however, some have been more significant than the other ones. A root habit that you may effortlessly use is to begin every day by laying your blankets. Studies have revealed that this may improve your overall well-being as well as improve your general productivity.


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Savaş Ateş

I'm a software engineer. I like reading books and writing summaries. I like to play soccer too :) Good Reads Profile: https://www.goodreads.com/user/show/106467014-sava-ate

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