The ABC Model
It feels like the bad day made you drink. It didn't. The ABC model reveals the hidden thought in between, and that thought is the one link in the chain you can change.
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What the ABC Model Is
The ABC model is a simple map of how a thought turns into an action. Three letters, in order: A is the activating event, the thing that happens. B is the belief, the thought you have about it. C is the consequence, the feeling that follows and what you do next.
For addiction, that last step is often a drink, a pill, a bet, a relapse. And the whole point of the model is what sits in the middle. It feels like A causes C directly: the bad day caused the craving caused the drinking. But there’s a hidden step between them. It’s the belief at B, the story you tell yourself about the bad day, that actually drives the urge and the using. The event is just the trigger. The thought pulls it.
That hidden step is where the hope is. You usually can’t control A. The stressful day is coming whether you like it or not. But B is reachable. You can catch the thought, look at it, and change it, and when B changes, C changes with it. That is the entire promise of the model, and it’s one a person can learn and use for the rest of their life.
- The ABC model is the core tool of cognitive behavioral therapy: it’s the skeleton beneath CBT, a first-line, evidence-based treatment for substance use disorders[1].
- It separates the trigger from the thought: A is the event, B is the belief about it, C is the feeling and the behavior, and the model shows that B, not A, is what drives the using at C.
- Working on the B step is core to how CBT helps: changing the thoughts that sit between a trigger and a slip is part of the mechanism by which CBT reduces substance use[2].
- It applies far past alcohol and drugs: the same A-B-C chain underlies cognitive-behavioral work for gambling, where treatment targets the very beliefs that drive the behavior[3].
Where the ABC Model Comes From
Here is a point people get wrong, so it’s worth being exact. The ABC model didn’t start with CBT. It came from rational emotive behavior therapy, or REBT, the approach the psychologist Albert Ellis built in the 1950s. Ellis was one of the first to argue that it isn’t events that disturb us but our beliefs about them, and he packaged that insight into the A-B-C shorthand.
CBT, which grew up alongside REBT and shares much of its DNA, took the model and made it central. So the accurate way to say it: REBT originated the ABC model, and CBT uses it too. When you work through an ABC chain with a CBT therapist or with one of the thought records that grew out of it, you’re using a tool both approaches share.
Albert Ellis liked to credit the Stoic philosopher Epictetus, who wrote nearly two thousand years ago that people are disturbed not by things but by the views they take of them. The ABC model is that ancient idea turned into a worksheet you can actually use against a craving.
The A, the B, and the C
Each letter is one link in a chain. Spelled out, the sequence is almost obvious, but seeing it laid out is what makes the hidden middle step visible.
A is the activating event. Something happens. It can be external, a fight with your partner, a rough day at work, walking past the old bar, getting paid on a Friday. It can also be internal, a wave of boredom, a memory, a flash of shame. A is just the trigger, the situation that kicks the chain off. On its own, it carries no verdict.
B is the belief. This is the thought you attach to A, the meaning you give it, usually so fast you don’t notice it happen. I can’t cope with this. I deserve a drink after that. One won’t hurt. I’ve already ruined the day. I’ll never get through tonight sober. B is the running commentary, and in addiction it’s frequently a half-truth that’s been rehearsed so many times it feels like simple fact.
C is the consequence. This is what B produces: the feeling and the behavior. The belief I can’t cope generates a spike of tension and helplessness, and that feeling drives the action, the craving, the reach, the using. C is where the relapse lives.
Why It’s B, Not A, That Drives the Using
This is the heart of the whole model, so it’s worth slowing down on.
Two people have the exact same hard day. Same A. One thinks that was brutal, I need a few hours to decompress and goes for a run. The other thinks I cannot get through this without a drink and pours one. Same event, opposite outcomes, and the only thing that differed was the belief in the middle. If A caused C directly, the same event would always produce the same result. It doesn’t. The belief is doing the real work.
That’s not a trick of wording. It’s the freeing part. The activating event is usually outside your control, the day will be hard, the trigger will come, the old bar will still be on the corner. But the belief is yours, and beliefs can be examined and changed. Spotting B is where you break the chain. The moment you can see the thought as a thought instead of an order, you’ve put a gap between the trigger and the using, and a gap is all a different choice needs.
This is also why the ABC model is more than a tidy idea. The work of finding and reshaping those middle-step beliefs is part of how CBT actually lowers substance use[2]. You’re not rearranging words for comfort. You’re going after the specific link in the chain that turns a trigger into a relapse.
A Worked Addiction Example
Abstract letters are easy to nod at and hard to use. So walk one all the way through, the way it tends to happen in a real evening.
A — the activating event. You get home after a draining, demoralizing day. Nothing catastrophic, just the slow grind: a boss who criticized your work, an inbox that won’t quit, the sense that you’re failing at everything. The day is the trigger. That’s all it is so far.
B — the belief. Almost instantly, before you’ve consciously decided anything, the thoughts arrive. I’ve earned this. I can’t relax without it. There’s no way I’m getting through tonight feeling like this. These are the beliefs, and notice their flavor, each one quietly nominates using as the answer. They feel true. They’ve run a thousand times.
C — the consequence. The beliefs do their job. A wave of craving and restlessness rises, that’s the feeling, and the feeling pushes the behavior: you reach for the bottle. The using is the consequence, and from inside the moment it feels like the bad day reached all the way to your hand. It didn’t. The belief did.
Here’s the table laid flat, with the place to intervene marked.
| Step | What it is | In this example | Can you change it? |
|---|---|---|---|
| A — Activating event | The trigger, external or internal | A draining, demoralizing day at work | Usually no, the day already happened |
| B — Belief | The thought about the event | I deserve this. I can’t cope sober. I won’t get through tonight. | Yes, this is the link you can reach |
| C — Consequence | The feeling, then the behavior | Craving and tension, then drinking | Changes on its own once B changes |
Now run it again with the belief examined. Same A, the same lousy day. But this time you catch B and question it: Is it actually true I can’t cope without a drink? What did handling a hard night sober look like the last time I did it? Does one ever stay one for me? The belief loosens, because most of the thoughts that drive using don’t survive a fair look. And as B softens, so does C, the craving has less fuel, and a different next move, a call, a walk, a glass of water, becomes possible. You didn’t change the day. You changed the one link you could.
Try It on One of Your Own
Reading the chain is one thing; running it on a real moment from your own life is where it starts to change anything. Work through one right here.
The Beliefs That Sit Between a Trigger and a Relapse
Once you start watching for B, you notice the same handful of beliefs show up again and again. In addiction they tend to fall into a few recognizable shapes, and naming them makes them easier to catch in the wild.
Permission-giving beliefs hand you a reason. I’ve had a hard week. I deserve this. It’s a special occasion. They reframe using as something earned or owed.
Helplessness beliefs insist you have no choice. I can’t cope without it. I can’t relax any other way. I’ll never get through this sober. They erase the very options the pause would reveal.
Abstinence-violation beliefs show up after a slip and try to turn it into a collapse. I’ve already blown it, so I might as well keep going. This one is dangerous precisely because it converts a single lapse into a full relapse, and catching it at B is what keeps one drink from becoming ten.
The work of going after these beliefs has a name in CBT, cognitive restructuring, and it’s exactly the part of the model that does the heavy lifting. You learn to treat each belief as a claim to be tested, not a command to be obeyed. The same approach carries into behavioral addictions too, gambling treatment works in part by targeting the distorted beliefs that drive the betting[3], which is the ABC chain running in a different arena.
The ABC Model Versus a Thought Record
People sometimes mix these up, so it helps to draw the line cleanly. The ABC model is the idea, the three-link chain that explains why a thought, not an event, drives the using. A thought record is the worksheet, the tool that puts the idea to work on paper.
A thought record takes the ABC chain and adds columns, the evidence for the belief, the evidence against it, a more balanced thought to put in its place, and how the feeling shifts once you do. In other words, ABC names the steps; the thought record is where you actually examine B and rebuild it. You can run a quick ABC in your head in the middle of a craving. You sit down with a thought record later to do the slower, deeper work on the beliefs that keep coming back.
Can You Use the ABC Model on Your Own?
Yes, and it’s built to be used that way. Much of CBT’s strength is that its skills travel out of the therapy room and into daily life, which is exactly why self-guided and digital versions of CBT can help reduce substance use[2]. The ABC model is among the most portable pieces of all, three letters you can run in your head while a craving is at full strength.
A simple way to start on your own: the next time an urge hits, freeze for a second and walk the chain backward. What’s the feeling and the urge right now, that’s C. What was I just telling myself, that’s B. What set it off, that’s A. Then put the one question to B that the whole model is built around, is this thought actually true, or just familiar?
That said, doing it solo has limits, and they’re worth naming plainly. The beliefs that drive a deep addiction are old, practiced, and good at hiding, and a craving at full volume is a hard place to think clearly. The model is more powerful with a guide who can spot the thoughts you’ve stopped noticing and help you rebuild them. Most people do best running ABC on their own between sessions and working the stubborn beliefs with a clinician who knows addiction, that pairing is part of why broader cognitive behavioral therapy holds up so well as a treatment[1].
If the chain in this is starting to feel familiar, that recognition is the skill itself beginning to work. The path from here is learnable and the way through is more bearable than the fear of it, especially with the right help and, where it fits, medication and other support alongside the therapy. You don’t have to untangle the beliefs alone. Find treatment and people who can help, and explore the wider tools and approaches that the ABC model is one piece of. Catching the thought before it becomes the next drink is something you can learn to do, and it gets easier every time.
The next step doesn’t have to be a big one. You can find treatment now and get matched with someone who can help you find the right care and take the next step. Reaching out today is a real step forward — and one you can make right now.
Frequently asked questions
What is the ABC model?
The ABC model is a simple framework for understanding how a thought becomes an action. A is the activating event (the thing that happens), B is the belief (the thought you have about it), and C is the consequence (the feeling that follows and what you do). Its central insight is that the consequence is driven by the belief at B, not directly by the event at A, which means changing the belief changes the outcome. In addiction treatment, it’s the core tool of cognitive behavioral therapy, a first-line, evidence-based approach for substance use[1].
What does ABC stand for?
ABC stands for Activating event, Belief, and Consequence. The activating event is the trigger, such as a stressful day or walking past an old bar. The belief is the thought you attach to it, like I deserve a drink or I can’t cope without it. The consequence is the emotional and behavioral result, the craving and the using. The model’s whole point is that B sits between A and C, so the trigger doesn’t cause the relapse on its own, the belief in the middle does.
Is the ABC model CBT or REBT?
Both, and the order matters. The ABC model originated in rational emotive behavior therapy (REBT), created by psychologist Albert Ellis in the 1950s. Cognitive behavioral therapy, which grew up alongside REBT and shares much of its foundation, adopted the model and made it central. So REBT invented the ABC framework and CBT uses it too. When you work an ABC chain in modern addiction treatment, you’re using a tool both the REBT and CBT traditions share.
How does the ABC model apply to addiction?
In addiction, the consequence at C is often a craving, a slip, or a relapse, and the model shows that it isn’t the trigger driving it but the belief in between. A hard day (A) leads to a thought like I’ve earned this, I can’t get through tonight sober (B), which produces the craving and the drinking (C). Because the belief is the one link you can actually reach and change, spotting B is where you break the chain. Working on those middle-step beliefs is part of how CBT lowers substance use[2], and the same approach targets the distorted beliefs behind behavioral addictions like gambling[3].
What's the difference between the ABC model and a thought record?
The ABC model is the idea, the three-link chain (event, belief, consequence) that explains why a thought drives the using. A thought record is the worksheet that puts that idea to work. A thought record takes the ABC chain and adds columns: the evidence for the belief, the evidence against it, a more balanced thought to replace it, and how the feeling shifts. You can run a quick ABC in your head during a craving; you sit down with a thought record later to do the deeper work of examining and rebuilding the belief at B.
Can I use the ABC model by myself?
Yes. The ABC model is one of the most portable pieces of CBT, three letters you can run in your head even while a craving is at full strength, and self-guided and digital CBT can genuinely help reduce substance use[2]. The next time an urge hits, walk the chain backward: name the feeling and urge (C), catch what you were just telling yourself (B), and notice what set it off (A), then ask whether that belief is actually true. The honest limit is that deep addictive beliefs are practiced and good at hiding, so most people do best running ABC on their own between sessions and working the stubborn beliefs with a clinician who knows addiction[1]. Find treatment and people who can help.
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