Why People Regret Decisions They Think About the Longest
Committing to and accepting your choices.
Posted February 9, 2026 | Reviewed by Monica Vilhauer Ph.D.
I’ll be the first to admit that, as a decision scientist, I’ve spent years encouraging people to approach decisions with intention and deliberation. You probably have been taught the same way. Think carefully, evaluate all options and risks, and don’t rush. It sounds sensible, and usually it is. Yet sometimes we see a confounding experience—those choices they agonized over most are often the ones they later regret.
This is not to say that thorough thinkers make poor choices. It's that extended deliberations can subtly change how your decisions are experienced in that moment and how they are remembered and reprocessed later. In certain instances, thinking longer isn’t protective; it’s harmful and creates regret. Think about some big choice you have recently made. Entering into a new relationship, purchasing a new house, or changing jobs. How long did you ponder your choice?
More Thought Should Mean Less Regret
Haste makes waste. That’s a common phrase that reminds us not to rush important decisions. Faced with a big choice, people often believe that more analysis will lead to peace of mind. But this can lead to inaction, as many of us are horrified at the prospect of making the wrong decision, and we might regret it if we rush through the process. Psychological research, however, suggests that regret is not driven solely by the quality of the outcome. Instead, it is shaped by how vividly we imagine the alternatives we didn’t choose. At times, excessive deliberation just supercharges that process and amps up the regret.
Extended deliberation encourages mental simulation. We imagine what life would look like if we chose Option A or B instead of Option C or D. Our minds are really good at simulating future outcomes. Over time, these imagined futures become emotionally detailed. They feel almost real. A marriage you missed out on, a child that wasn’t conceived. One big problem, though: Once a decision is made, only one outcome can exist. The others don’t disappear. They linger as vivid mental representations of what could have been. These are counterfactuals. The longer we ruminate over paths not taken, the more emotionally accessible they remain.
Psychologists have long shown that regret intensifies when people can easily imagine a better alternative outcome. Long deliberation makes that imagination easier, and harder to shut off. In other words, careful thinking can, in turn, create regret. One psychological explanation comes from cognitive dissonance theory. According to this theory, people experience discomfort when their choices conflict with competing beliefs or desires. Every decision creates dissonance because choosing one option requires giving up others. When people deliberate extensively, they mentally invest in multiple alternatives, making each one feel meaningful. After the decision is made, those rejected options don’t disappear—they remain active sources of tension. The mind then tries to resolve that discomfort by re-examining the choice itself, often experienced subjectively as regret.
Acceptance and Commitment
Other overlooked factors are acceptance and commitment. Faster decisions often feel more self-authored. When we choose without excessive deliberation, the decision feels like an expression of who we are, rather than the result of endless internal debate. Extended deliberation, by contrast, can fragment our acceptance and ownership in rationalizing our choices. Part of us remains attached to each option. Even after deciding, the mind continues to negotiate and ruminate, reopening the case whenever discomfort arises. Research on decision satisfaction suggests that people feel better about their choices when they mentally limit the number of alternatives . Commitment, not certainty, reduces regret.
When Thinking More Does Help
None of this means that thinking carefully is a mistake. Some decisions clearly benefit from extended analysis, especially when they are irreversible, safety-related, or based on objective criteria, such as medical treatments or major investments.
The issue isn’t thought itself, but excessive deliberation in subjective, preference-based decisions. These subjective areas often involve values , identity , or uncertainty about the future. In these cases, there is rarely a single “correct” answer. Thinking longer doesn’t reveal the hidden truth; it multiplies imagined alternatives.
Instead of asking, “Have I thought enough about this?” a more helpful question could be “Am I ready to commit and stand behind this choice?” Regret tends to flourish when decisions are made conditionally. Commit and then let go. What reduces regret is not perfect reasoning, but psychological closure.
A few evidence-informed strategies can help reduce decision regret.
Although these steps don’t guarantee perfect outcomes, they reduce the mental habits that fuel regret.
Many people believe regret proves a bad decision. Yet more often, it is evidence of unfinished psychological closure with the alternatives and the opportunity cost. Sometimes the most satisfying decisions aren’t the ones we analyzed the most. Instead, they’re the ones we chose and then fully committed to. Thinking can help us decide. Commitment and acceptance allow us to move on. From a cognitive dissonance perspective, the goal of decision-making should not be certainty, but psychological alignment, which stems from accepting your choice and moving on.
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James Langabeer, Ph.D., Ed.D., is a leading behavioral scientist and tenured Professor of Medicine and Clinical Informatics at the University of Texas Health Science Center at Houston (UTHealth).
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This article is part of the Bringwise Psychology Journal — daily insights on human behavior, mental health, and personal growth.