Restraint Bias
Category: Decision Making
You overestimate how well you can control your own impulses (hunger, cravings, arousal, fatigue, the urge to spend), so you walk straight into temptation you should have avoided.
How it works
Restraint bias runs on a state gap. Right now you are in a cold state (satiated, sober, calm), and from there you literally cannot simulate how strong a visceral drive feels in a hot state, so you forecast your future willpower as if the craving will be as quiet as it is now. That inflated confidence does not just make you feel good, it changes your behavior: because you believe you can handle temptation, you stop protecting yourself from it. You keep the cigarettes in the drawer, sit in the bar, leave the app installed, browse the store "just to look." Then the hot state arrives at full volume, the willpower you budgeted for was never real, and the exposure you chose does the rest.
Where you'll see it
- Nordgren, van Harreveld, and van der Pligt (2009) gave 53 smokers false feedback about their impulse control, then let them choose how much to tempt themselves while watching the film Coffee and Cigarettes with a cigarette placed anywhere from another room to their own mouth. Smokers told they had strong control picked the harder challenges, and their failure-to-abstain rate was roughly triple that of the low-control group (about 33 percent versus 12 percent).
- In the same paper's Study 2, 79 people chose a snack they could win four euros for returning uneaten after a week. Those leaving the cafeteria (already full, feeling in control) picked more tempting snacks and were less likely to bring them back intact (about 39 percent returned) than people who were still hungry on the way in (about 61 percent returned).
- In Study 4, 55 smokers who had been abstinent for three weeks reported how confident they were about their cravings and how much temptation they let into their lives. The more confident ones avoided temptation less, keeping cigarettes around and not asking others to refrain, and it was that lower avoidance, not confidence by itself, that predicted relapse four months later.
- The New Year's gym membership. You are certain January-you will go three times a week, so you sign the annual contract instead of paying per visit. The gym's entire business model is built on your restraint bias: sell the commitment to the confident cold-state version of you, collect from the no-show hot-state version.
Where it comes from
The bias was named and demonstrated by Loran Nordgren, Frenk van Harreveld, and Joop van der Pligt in a 2009 Psychological Science paper, "The Restraint Bias: How the Illusion of Self-Restraint Promotes Impulsive Behavior." Across four studies (fatigued students planning worse study schedules, satiated shoppers picking riskier snacks, smokers overexposing themselves after inflated feedback, and recovering smokers whose low avoidance of temptation predicted relapse) they showed that overrating your impulse control makes you seek out temptation rather than avoid it. The work sits directly on top of George Loewenstein's earlier research on visceral factors and the "cold-to-hot empathy gap," the finding that people in a cold state systematically underestimate the grip of drives they are not currently feeling. Nordgren's contribution was the behavioral kicker: the illusion does not just misjudge, it actively steers you into harm.
How to counter it
Precommit while you are cold. Do not rely on in-the-moment willpower, spend it now while the craving is quiet. Delete the app, cancel the card on file, do not buy the snacks, tell the bartender to cut you off. The version of you making the plan is the strong one, so make the decision binding before the weak one shows up.
Treat your confidence as a warning light, not a green light. The more sure you feel that you "can handle just one," the more that is the restraint bias talking. When you catch yourself thinking you are strong enough to sit next to the temptation, invert it and increase the distance instead.
Design the environment, not the discipline. Change what is reachable, not how hard you will try. Keep the cigarettes out of the house, unsubscribe so the marketing email never arrives, put the credit card in a drawer across town. Manipulate exposure, because exposure is the variable Nordgren showed you actually control.
Ask what a business would bet on. Gyms, casinos, subscriptions, and open bars all profit from your overconfidence. If someone is selling you a commitment on the assumption that future-you will fail, believe them over yourself.
The tell
You catch yourself saying "I'll just have one" or "I can stop whenever I want" while deliberately putting the temptation within arm's reach.
Related biases
Common questions
What is Restraint Bias?
Restraint Bias is the tendency to overestimate how well you can control your own impulses, such as hunger, cravings, arousal, fatigue, or the urge to spend. Because of this inflated confidence, you walk straight into temptations you should have avoided. It is the gap between how much willpower you think you have and how much you actually have when a drive gets strong.
Why does Restraint Bias happen?
Restraint Bias happens because of a state gap between how you feel now and how you will feel later. When you are in a cold state (satiated, sober, calm), you literally cannot simulate how powerful a visceral drive feels in a hot state, so you forecast your future willpower as if the craving will stay as quiet as it is now. That inflated confidence does not just feel good, it changes your behavior by pushing you toward temptation.
What is an example of Restraint Bias?
A classic example of Restraint Bias comes from Nordgren, van Harreveld, and van der Pligt (2009), who gave 53 smokers false feedback about their impulse control. The smokers then chose how much to tempt themselves while watching the film Coffee and Cigarettes with a cigarette they could place anywhere. Those led to believe they had strong self-control exposed themselves to more temptation, illustrating how overconfidence in restraint drives risky behavior.
How do you avoid Restraint Bias?
You avoid Restraint Bias by precommitting while you are in a cold state instead of relying on in-the-moment willpower. Spend your self-control now while the craving is quiet: delete the app, cancel the card on file, do not buy the snacks, or tell the bartender to cut you off. The version of you making the plan is the strong one, so let that version make the decision.
What is the difference between Restraint Bias and Sunk Cost Fallacy?
Restraint Bias is about overestimating your future self-control, leading you to walk into temptation you should have avoided. The Sunk Cost Fallacy is about continuing an action because of resources you have already invested, even when quitting is the better choice. Restraint Bias is a forward-looking error about willpower, while the Sunk Cost Fallacy is a backward-looking error about past costs.
References
- Loran F. Nordgren, Frenk van Harreveld, Joop van der Pligt (2009). The Restraint Bias: How the Illusion of Self-Restraint Promotes Impulsive Behavior. Psychological Science, 20(12), 1523-1528
- George Loewenstein (1996). Out of Control: Visceral Influences on Behavior. Organizational Behavior and Human Decision Processes, 65(3), 272-292
- Loran F. Nordgren, Eileen Y. Chou (2011). The Push and Pull of Temptation: The Bidirectional Influence of Temptation on Self-Control. Psychological Science, 22(11), 1386-1390
- George Loewenstein (2005). Hot-Cold Empathy Gaps and Medical Decision Making. Health Psychology, 24(4S), S49-S56