Mentis- What-if thoughts come from a mind trying to prepare for every outcome.
- Run a four-step check: write it, rate it, plan for it, name the likely outcome.
- In a 2020 study, 91% of worries people tracked didn't happen.
- Practise living with a little uncertainty. That, more than reassurance, makes what-ifs quieter.
Why do my thoughts always go to "what if"?
"What if I miss the train? What if the boss hates the deck? What if this headache is something serious?" A what-if thought is your brain's attempt to stay one step ahead of danger. It's useful in small doses: a what-if about rain makes you carry an umbrella. It becomes overthinking when the questions multiply and none of them lead to an action.
Researchers including Michel Dugas link heavy what-if thinking to intolerance of uncertainty, finding not-knowing very hard to sit with. The mind keeps generating scenarios because it believes that if it imagines everything, nothing will catch it by surprise. Many worriers also believe worry helps: that it prevents bad things or prepares them. Those beliefs keep the habit going.
The four-step what-if check
- Write it exactly. "What if I get fired after this review?" Vague dread becomes a specific sentence you can look at.
- Rate how likely it is, honestly. Zero to 100%. What evidence do you have for and against? Has it happened before in similar situations?
- Plan for it anyway. "If it happened, I would…" Talk to HR, update my CV, call my cousin who hires. Seeing you could cope takes away much of the fear.
- Name the likely outcome. "Most likely: the review is mixed, I get some feedback, and I keep my job." Write it next to the what-if.
Then do the most powerful part: check back later. When LaFreniere and Newman asked people with generalised anxiety to log their worries for 10 days and see what happened, about 91% of the predicted bad outcomes didn't happen. For the ones that did, the outcome was often better than feared. Your own log will tell you the same thing, and it's more convincing than any article.
In the Mentis Overthinking plan, this is the chapter What if, checked, with journals like "Today's What-Ifs" and "Predicted, Happened".
What if the what-if is actually likely?
Sometimes the worry is realistic: a parent's illness, layoffs at your company. Then it isn't a thinking error, it's a real problem, and it deserves problem-solving, not looping. Make a short plan with two or three concrete steps, take the first one, and schedule a time to review. Separate what's in your hands from what isn't. The Mentis activity "In My Hands, Not In My Hands" does this in two columns.
How do I live with uncertainty?
Reassurance feels good for a minute, but it teaches your brain that uncertainty is dangerous and must be fixed. Over time, practise small doses of not-knowing:
- Send the email without rereading it five times.
- Try a new restaurant without checking every review.
- Wait an hour before searching a symptom online.
- Make a small decision in under a minute.
Notice that the discomfort rises, then falls on its own. That's the lesson your mind needs.
Quick tools for when what-ifs spiral
- Postpone it: write it down and save it for your daily worry window. See worry time and the worry timer.
- Breathe it down: a physiological sigh (two inhales, one long exhale) a few times, or box breathing.
- Get specific: ask "what's one step I can take today?" More on this in the overthinking guide.
When what-ifs might be anxiety
If what-if thinking fills most of your day, is hard to control and comes with tension, restlessness, irritability or poor sleep for months, it may be part of anxiety. Read overthinking vs anxiety and try our anxiety self-check.
How Mentis helps
The Overthinking plan builds the what-if check into your week, then follows up: Mimi asks what happened with the worry you logged on Tuesday. Seeing your own "Predicted, Happened" record over a few weeks is one of the most reassuring things you can do for a worried mind.
Frequently asked questions
Why do I always think about what could go wrong?
Your brain is wired to spot threats, and if you find uncertainty hard to tolerate, imagining the worst can feel like a way to prepare or stay in control. Over time it becomes a habit.
How do you challenge what-if thoughts?
Write the thought down, estimate how likely it is, plan what you would do if it happened, and write the more likely outcome. Then check later what actually happened.
Are what-if thoughts a sign of anxiety?
Frequent what-if thinking is a core part of worry and is common in anxiety. If it's hard to control most days and comes with tension, restlessness or poor sleep, take our anxiety self-check.
What is intolerance of uncertainty?
It's a tendency to find not knowing very uncomfortable, so the mind keeps searching for certainty. Research by Michel Dugas and colleagues links it closely with worry.
- LaFreniere LS & Newman MG (2020). Exposing worry's deceit: percentage of untrue worries in generalized anxiety disorder treatment. Behavior Therapy 51(3).
- Dugas MJ, Gagnon F, Ladouceur R & Freeston MH (1998). Generalized anxiety disorder: a preliminary test of a conceptual model. Behaviour Research and Therapy 36(2).
- Borkovec TD, Hazlett-Stevens H & Diaz ML (1999). The role of positive beliefs about worry in generalized anxiety disorder and its treatment. Clinical Psychology & Psychotherapy 6(2).