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How to Use the 90-Day Technique to Create Lasting Habits
Why 90 days? This question is fundamental to understanding the effectiveness of this technique. Research in behavioral psychology, such as that carried out by University College London, indicates that it takes an average of 66 days for a habit to take hold, but 90 days offers a safe margin for adaptation and overcoming relapses. Imagine you want to start meditating or exercising regularly. In the first few days, motivation is high, but after a few weeks, the routine weighs you down and giving up seems tempting. That's when the 90 days come into play, creating a cycle long enough for the brain to assimilate the action as a natural part of everyday life.
What differentiates this technique from others? While quick-fix methods promise change in 21 days, for example, the 90-day approach recognizes that real transformation requires time and consistent repetition. A study published in European Journal of Social Psychology showed that participants who maintained a new habit for three months had a significantly higher success rate than those who stopped before. Have you ever tried to adopt a change and given up because you didn't see immediate results? The 90-day technique helps you adjust your expectations and focus on the long term.
How to start? First, define a clear and measurable habit. Instead of "I want to be healthier", opt for "I'm going to walk 30 minutes a day, five times a week". Specificity is crucial. Then divide the 90 days into three phases: adaptation (days 1-30), consolidation (days 31-60) e automation (days 61-90). Each phase has different challenges, and recognizing them in advance increases your chances of success. Want a practical example? If your goal is to read more, in the first phase you could start with 10 pages a day, gradually increasing to one book a month.
Tools to track your progress are essential. Applications such as Habitica or Strides allow you to record your progress and send reminders. If you prefer the analog method, a planner or a simple wall calendar can be just as effective. The important thing is to visualize your daily commitment. Remember: consistency overcomes intensity. Don't blame yourself if one day doesn't go as planned; the important thing is to get back to it the next day.
The Adaptation Phase: Overcoming Initial Resistance
The first 30 days are the most challenging. Your brain is still programmed for the old habit, and laziness or a lack of tangible results can undermine your determination. Why is that? The answer lies in neuroplasticity. When you repeat a new action, such as waking up earlier to exercise, you are literally redoing neural connections. It's a process that requires energy and patience. Have you ever felt the urge to press the "snooze" button even though you know you should get up? That's the conflict between the immediate desire (to rest) and the long-term goal (more energy).
Strategies for overcoming resistance include 2-minute techniquepopularized by James Clear, author of Atomic Habits. If you want to get into the habit of reading, for example, start with just two minutes a day. It seems insignificant, but this small step reduces the pressure and makes it easier to get started. Another tip is associate the new habit with an already established action. If you drink coffee every morning, how about reading while you drink your first cup? This association creates a mental trigger that reinforces the routine.
Common mistakes in this phase are to expect constant motivation and underestimate obstacles. Motivation is volatile - it disappears when you need it most. Therefore, systems are more important than inspiration. Prepare your environment for success: if you want to eat better, leave washed fruit in the fridge; if you want to work out, leave your exercise clothes ready the night before. Small adjustments eliminate friction and increase adherence.
How do you deal with relapses? They are normal. If you miss a day of training or eat something off plan, don't take it as a total failure. Instead, analyze what caused the slip-up and adjust your strategy. A habit diary can help you identify patterns. For example, if you notice that you always skip the gym on busy days, schedule shorter sessions or exercise at home. Flexibility is key.
The Consolidation Phase: Turning Action into Routine
Between days 31 and 60, the habit begins to take root. Resistance decreases and the activity begins to require less conscious effort. What changes at this stage? If before you had to convince yourself to act, now you miss it if you jump. A beginner runner, for example, may notice that the 5 km no longer seems like torture, but a natural part of their day. That's the power of repetition.
How to keep the momentum going? Introduce variations to avoid boredom. If you're practicing yoga, try a new sequence or join a different online class. Novelty reactivates interest and prevents stagnation. Another effective technique is monitor secondary benefits. Write down how you feel after each session: more willing, less stressed? These small victories reinforce the purpose.
The importance of social responsibility also grows at this stage. Sharing your progress with a friend or on social networks (such as groups focused on noodle habits) is a good way to get started. Reddit) creates a public commitment. Knowing that other people are rooting for you - or even joining the challenge - is powerful fuel.
When the habit still seems difficultIf you're a runner, assess whether the problem is the run or the goal itself. Maybe running isn't for you, but swimming is. Or reading technical books is boring, but podcasts on the subject work better. Adapting the method to your profile isn't cheating; it's intelligence.
The Automation Phase: When Habit Becomes Part of Who You Are
Over the last 30 days, the aim is to make the habit as natural as brushing your teeth. How do you know if you've got there? When the action no longer requires a conscious decision. A writer who writes every morning, for example, may feel that something is missing from the day if they don't take the time to practice.
Deepening the habit it's possible now. If you already meditate for 10 minutes, try 15. If you read one book a month, try two. But beware of over-ambition. Gradual increases avoid overload.

Prepare for future temptations. Travel, personal crises or changes in routine can threaten your progress. Have a "plan B": guided meditations on your cell phone for days when you don't have time, or quick workouts at home when you can't get to the gym.
Celebrate your achievements. Rewards reinforce behavior. Watch a movie after a week of studying, or buy a new sports outfit after a month of training. But remember: the biggest reward is the change itself.
Adapting the Technique to Different Areas of Life
Professional habits, how to organize tasks with the Todoistcan follow the same principles. Dedicate 90 days to mastering a new tool or working technique.
Relationships also benefit. How about 90 days of gratitude, expressing one compliment a day to your partner? Or active communication, listening without interrupting?
Mental health can include journaling or online therapy. Platforms such as Psychology Alive offer affordable support.
The secret is personalization. Test, adjust and find the rhythm that works for you.
Mistakes that can ruin your 90 days
Multiple habits at the same time put a strain on willpower. Focus on one or two per cycle.
Ignoring setbacks leads to abandonment. Accept that failures are part of it and use them to learn.
Comparison with others is poison. Your progress is unique.
Unrealistic goals"Never eat sugar again" are traps. Opt for "reduce sweets to twice a week".
What to do after 90 days?
Evaluate the results. Has the habit become automatic? Is it worth keeping? If yes, continue! If not, redefine it.
Choose a new challenge. Seize the momentum for another habit. Life is a series of improvement cycles.
Share your learning. Teaching consolidates your knowledge and inspires others.
Remember: Habits are means, not ends. They exist to serve the life you want to build. Now, how about starting your first day today?