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Home » How Long It Takes To Change Your Life? – Nwal Hadaki (Transcript)

How Long It Takes To Change Your Life? – Nwal Hadaki (Transcript)

Here is the full text and summary of Nwal Hadaki’s talk titled “How Long It Takes To Change Your Life?” at TEDxSafirSchool conference.

Listen to the audio version here:


Have you ever thought to yourself before going to sleep, tomorrow is the day I’ll change. Tomorrow is the day I’ll get up early in the morning, have a healthy breakfast, go for a morning jog, breathe fresh air. Tomorrow is the day I want to change to who I really want to be, the best version of myself.

While change doesn’t come easy, you have to incorporate certain habits in your life that will eventually lead to you becoming the best version of yourself. You’ll also have to eliminate certain habits that are hindering your path.

Well, how long will it take you to form a new habit or get rid of an old one? Most people will tell you it takes exactly 21 days for a person to form a habit or get rid of an old one.

I remember once in high school, one of my teachers told me it takes exactly 21 days for me to form a new habit and I thought this is my chance to become a bed maker. I thought that for the next 21 days, instead of getting up every day and yelling, “Mom, please don’t forget to make my bed today,” I thought I’d do it myself.

Day by day, early in the morning, 6 a.m., even on days I was running late, I got up every morning and I made my bed and I hated every second of it. By day 22, I opened my eyes and the first thing I did was say, “Mom, please don’t forget to make my bed today.” I quit. Of course, that was expected and I thought, okay, maybe I’m just going to be a little bit worse at life than bed makers, whatever.

21-Day Theory?

I do not exaggerate if I say that this 21-day theory is the most famous myth in the world of self-development.

Let’s dive a little into our theory to understand where the number 21 came from and the reasons for its spread in self-developmental books and courses. Dr. Maxwell Maltz was a plastic surgeon in the 1950s when he began noticing a strange pattern among his patients.

For example, in a nose job, he saw that the patient took exactly 21 days to get used to start seeing his or her new nose. He also noticed that if a patient had an arm or leg amputated, the patient would acknowledge the feeling of their new limb for exactly 21 days before starting to get used to their new condition.

Dr. Maltz published his theory in a book that went very famous in that era and sold over 30 million copies. Here, the conflict started brewing and it made sense why people were starting to believe his theory. Why?

Number one, the number 21 is considered a short period of time and that’s also considered a source of temptation, which means something you can do.

Number two, the number 21 is also long enough to be believable, a difficult challenge but not impossible. I mean, who wouldn’t love to change their whole life within just 21 days? Wouldn’t you love to start waking up early in the morning every day? Wouldn’t you love to start cooking healthy recipes? Wouldn’t you love to start drinking weird smoothies? And all within less than one month, we’d go for it in a heartbeat.

So is it true? Can we really change our lives within 21 days? I know that sounds very exciting but there are actually a few factors you’d have to consider to be able to estimate the time it’ll take you to form a new habit or get rid of an old toxic one.

Number one is the complexity of your goal. If I decide to start eating fruit daily, which is considered a simple habit, I’d probably take less time than if I want to acquire a complex athletic skill, like a tennis serve.

Number two, behavior consistency affects the speed of acquisition. Me repeating a certain behavior for three minutes a day is different than my friend repeating the same behavior for 30 minutes a day.

So we want to clear things up. How long will it take us to form a new habit or get rid of an old one? And is there a reliable study that we can depend on? Answer is yes.

There is a famous study by the psychologist Phillippa Lally titled “How Are Habits Formed?” The study followed 96 people over a period of 12 weeks. Each person chose a new 12-week habit to work on, such as drinking three cups of water before lunch or running for 15 minutes after dinner.

After 12 weeks, the data was analyzed to determine the time needed to move from the old habit to start subconsciously carrying out the new one. And after 12 weeks, we found that it took approximately two to eight months in order for the task to become a habit, and 66 days to be exact.

The difference in time it took to form a habit was largely due to the task itself, the person, and their circumstances, as some were able to form the habit within 18 days, while others took 254 days.

So according to psychologist Lally, if you want to know the time required to form a new habit or get rid of an old one, the truth is that you may need two to eight months and not just 21 days.

Guys, whether it’s two months, three months, a year, two years, it doesn’t actually matter how long it takes as much as it matters that you have to begin with today. And once you begin, make sure to maintain your new habit, make it part of your schedule, set reminders, create a supportive environment, and most importantly, you don’t have to be perfect.

Making a mistake once or twice has no lasting effects on your behavior. Actually, that’ll give you time not to rush yourself into things. You have to give yourself time and not just rush yourself into becoming a better version. If I want to become a better person, I’ll have to commit to the system and embrace the process.

That way, I’ll commit to making tiny improvements rather than rushing myself too hard into things. Change is not always easy, and it’s not always simple, but with enough dedication, any habit can be reshaped. So if you really want it, becoming the best version of yourself, get up today and start working on it. I promise you’ll get there.

Thank you.

Want a summary of this talk? Here it is.


Nwal Hadaki’s talk titled “How Long It Takes To Change Your Life?” revolves around the misconception of the 21-day rule for forming new habits and the reality of habit formation. Here are the key points from her talk:

  1. Desire for Change: Hadaki begins by addressing the universal desire for self-improvement, where people often set their sights on becoming the best version of themselves.
  2. Habit Formation: She emphasizes the importance of incorporating positive habits and eliminating negative ones to achieve personal growth.
  3. The 21-Day Myth: Hadaki challenges the widely held belief that it takes exactly 21 days to form a new habit or break an old one. She shares a personal anecdote of trying to make her bed for 21 days but failing to maintain the habit afterward.
  4. Origins of the Myth: Hadaki delves into the origins of the 21-day theory, attributing it to Dr. Maxwell Maltz, a plastic surgeon who observed that it took patients approximately 21 days to adapt to physical changes like a new nose or an amputation.
  5. Reasons for Belief: She explains why people are inclined to believe in the 21-day rule, citing the short but believable timeframe and the allure of quick life transformation.
  6. Complexity and Consistency: Hadaki highlights that the time it takes to form a habit depends on the complexity of the goal and the consistency of the behavior. Simple habits may take less time than complex ones, and the frequency of repetition matters.
  7. Scientific Study: She introduces a study by psychologist Phillippa Lally, which followed 96 individuals for 12 weeks to understand habit formation. The study found that, on average, it took about 66 days for a new habit to form.
  8. Variability in Habit Formation: Hadaki underscores that the time required to form a habit can vary widely, from as little as 18 days to as long as 254 days. It depends on the task, the individual, and their circumstances.
  9. Key Takeaways: Hadaki concludes by emphasizing that the specific time it takes to form a habit is less important than starting today and maintaining consistent efforts. She encourages setting reminders, creating a supportive environment, and not striving for perfection.
  10. Commitment to Improvement: Hadaki reminds her audience that change is not always easy, but with dedication and a commitment to the process, anyone can reshape their habits and become a better version of themselves.

In summary, Nwal Hadaki’s talk challenges the popular belief in the 21-day rule for habit formation, presenting scientific evidence that it typically takes longer. She encourages her audience to focus on dedication and embracing the process of change, emphasizing that anyone can achieve personal growth if they commit to making small, consistent improvements over time.

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