The five stages of change are precontemplation, contemplation, preparation, action, and maintenance. Developed by psychologists James Prochaska and Carlo DiClemente, this framework (called the Transtheoretical Model) describes how people actually modify behavior, whether that’s quitting smoking, starting an exercise habit, or changing their diet. Each stage has specific time-based criteria and a distinct psychological profile, and understanding where you fall can help you figure out what kind of support you actually need.
Stage 1: Precontemplation
In precontemplation, you have no intention of making a change within the next six months. You might not see the behavior as a problem at all, or you might feel that the costs of changing outweigh the benefits. A common mindset sounds like: “I don’t see a problem with what I’m doing, so there’s no reason to change anything.”
This isn’t laziness or denial in the simple sense. People in precontemplation often lack information about the consequences of their behavior, or they’ve tried and failed before and feel demoralized. Pressure from others rarely helps here. What does help is new information, delivered without judgment, that gradually shifts how someone sees the situation. A person in precontemplation doesn’t need a gym plan or a quit date. They need a reason to care.
Stage 2: Contemplation
Contemplation means you recognize a problem and intend to do something about it within the next six months, but not yet. The defining feature of this stage is ambivalence: you can see the benefits of changing and the costs of staying the same, but you can also see the effort involved and the comfort of your current routine. That push and pull can keep people stuck in contemplation for six months or longer.
The internal work happening here is a kind of cost-benefit analysis. You’re weighing the pros and cons of the new behavior against the pros and cons of the old one. Research on this “decisional balance” shows it’s actually more complex than a simple two-column list. Different types of benefits and barriers shift at different rates as people move through stages, which is why the same person can feel motivated one day and completely stuck the next. If you find yourself endlessly researching a change but never committing, you’re likely in contemplation.
Stage 3: Preparation
Preparation is the planning stage. You intend to act within the next 30 days and have usually taken at least one concrete behavioral step in the past year. For someone quitting smoking, that might mean having made at least one 24-hour quit attempt. For someone starting to exercise, it might mean buying running shoes or signing up for a class.
The key distinction between contemplation and preparation is specificity. You’ve moved past “I should probably do something” into “Here’s what I’m going to do, and here’s when.” This is where setting a start date, telling someone about your plan, or removing obstacles from your environment makes the biggest difference. People who skip this stage and jump straight from wanting to change into trying to change tend to be less successful, because they haven’t built the scaffolding that supports the new behavior.
Stage 4: Action
Action is the most visible stage, the one most people think of when they hear “behavior change.” You’ve made the change and sustained it for up to six months. You’re actively doing the new thing or actively not doing the old thing. For quitting smoking, the expectation in this model is total abstinence from the behavior.
This stage demands the most energy. You’re building new routines, managing cravings or discomfort, and constantly choosing the harder path. Your confidence in your ability to maintain the change (what psychologists call self-efficacy) plays a critical role here. Research on university students found that self-efficacy increases significantly as people progress through stages, and that higher self-efficacy predicts both better decision-making and greater follow-through. In practical terms: every day you successfully maintain the change, your belief that you can keep going gets a little stronger.
Stage 5: Maintenance
Once you’ve sustained the new behavior for more than six months, you enter maintenance. The goal here is preventing relapse and consolidating the change into your identity and daily life. People typically remain in maintenance for anywhere from six months to five years.
Maintenance isn’t just “more action.” The psychological demands shift. During action, you’re actively fighting old patterns. During maintenance, the new behavior becomes more automatic, temptation decreases, and your confidence continues to build. The perceived barriers to the behavior (time, effort, discomfort) shrink as the behavior becomes routine. Eventually, some people reach a point where they feel zero temptation to return to the old behavior and complete confidence in their ability to maintain the change. At that point, the new behavior is simply part of who they are.
Relapse Is Part of the Model
One of the most useful aspects of this framework is that it treats relapse not as failure but as a normal part of the process. Prochaska and DiClemente originally described change as a spiral staircase rather than a straight line. Most people don’t move neatly from precontemplation through to maintenance on their first attempt. They cycle through stages multiple times, learning something each round.
Where you land after a relapse varies. One person might slip all the way back to precontemplation, feeling discouraged and no longer interested in changing. Another might return directly to preparation, ready to try again with a better plan. The same person might return to different stages after different relapses, depending on what they learned. Studies on quit attempts for smoking estimate that people need anywhere from five or six to 20 or 30 serious attempts before achieving lasting change. That range is wide, but the core point holds: repeated attempts are normal, and each attempt builds toward eventual success.
The spiral model means that “failing” at a change doesn’t reset your progress to zero. Each cycle through the stages tends to be more complete than the last. You understand your triggers better, your planning is more realistic, and your confidence is built on actual experience rather than optimism alone.
How to Use the Stages
The practical value of this model is matching your strategy to your actual stage. Jumping to action-stage strategies (strict plans, accountability partners, tracking apps) when you’re still in contemplation is a recipe for frustration. Similarly, if you’re already in preparation, spending more time weighing pros and cons just delays the start.
If you’re in precontemplation or early contemplation, focus on learning. Read about the behavior you want to change. Talk to people who’ve made similar changes. Let yourself sit with the idea without forcing a commitment. If you’re in contemplation and feeling stuck, try making the cost-benefit analysis explicit: write down what you gain and lose from both the old behavior and the new one. Often, seeing it on paper breaks the loop of ambivalence.
In preparation, get specific. Set a date, tell someone, and remove as many barriers as you can before you start. During action, protect your energy. This is the hardest stretch, and your confidence is still fragile. Build in rewards, track your progress in whatever way feels motivating, and expect some difficult days. In maintenance, shift your focus from willpower to systems. The goal is making the new behavior so embedded in your routine that it no longer requires constant effort.
Knowing which stage you’re in won’t make change easy, but it can keep you from blaming yourself for being in the wrong stage or using the wrong tools for where you actually are.