Does a worry that keeps coming back mean it's true?

On the podcast Fatti di Mente (August 2026), clinical psychologist Guglielmo Pezzillo spent an episode on how to stop thinking too much. Partway through, Pezzillo named a trap that keeps the loop running. When we're caught in it, Pezzillo said in that episode, we mistake familiarity for truth. A thought that comes back dozens of times starts to seem important for that reason alone: surely, if I keep thinking it, there must be something to it.

"La frequenza di un pensiero non dimostra mai la sua accuratezza."

In English: "How often a thought comes back never proves it's accurate."

Guglielmo Pezzillo, Fatti di Mente, 2026

Why a thought repeats

Pezzillo gave several reasons a thought can return that have nothing to do with whether it's right. We may be afraid. We may be tired. A situation may have been left open. Or the mind may have been put on alert, so that it answers every time the subject comes up.

Clinical psychologist Kirsty Ross makes the same point in plain words. Thoughts are just ideas, Ross writes, not necessarily true or accurate, but when we have them on repeat they can start to feel true because they become familiar (Ross, 2024).

Pezzillo also offered a test for any stretch of reflection: look at its effect. After thinking it through, do you understand some part of yourself or the situation better? Or do you feel interrogated, stuck, trapped? The first is useful reflection. The second is the loop.

What to do with a repeating worry

The natural reaction is to try to push the thought out. That tends to backfire. In the classic white bear experiments, students told not to think of a white bear kept thinking of it, and thought of it more afterward (Wegner et al, 1987).

A gentler move comes from the World Health Organization's self-help guide on stress, which calls it unhooking: notice the thought, name it, then bring your attention back to what you're doing (WHO, Doing What Matters in Times of Stress). Naming it doesn't argue with it or try to get rid of it. It simply shows you the thought as a thought.

How this fits the Reduce worry and overthinking program

In the 1h Protocol to Reduce Worry and Overthinking, this myth is corrected in the part for people whose loop is the What-If Chain. One of its lines is the "I'm having the thought that..." frame, which moves you from inside the thought to beside it. Another, also inspired by this episode, splits a what-if into three short lists: what I know, what I imagine, what I can do. Pezzillo's minutes on repetition are on the program's listening list. The first chapter is free and shows you which loop is yours.

Source: Fatti di Mente, Come smettere di pensare troppo, 18 Aug 2026 Research: Ross, 2024 · WHO, Doing What Matters in Times of Stress · Wegner et al, 1987