Why Overthinking Turns Into a Loop: Why Does the Mind Keep Going Back?

What Is Overthinking?

Overthinking is the same subject going round and round in the mind, and it usually runs in two directions. The forward-looking kind is the “what if” sentences, which we call worry. The backward-looking kind is the “why did I say that, why am I always like this” questions. Both start as a search for an answer, reassurance or a sense of control; but once they start going round they usually add no new information.

Why Does the Loop Feed Itself?

• Believing that thinking helps: a belief such as “if I don’t think it through I’ll be unprepared” or “I must keep thinking until I’ve solved this” becomes the reason for keeping the loop going.
• Abstract questions: broad, judging questions such as “why am I always like this?” have no single answer; the mind goes round as it searches.
• Trying to suppress: pushing a thought away often makes it more visible; research shows that suppression often brings the thought back.
• Avoidance: worry can sometimes work as a way of escaping a more uncomfortable feeling, which is why it relieves briefly and keeps going in the long run.
• Quiet and tiredness: once the distractions of the day fall away, thoughts can arrive more loudly, especially at night.

The Difference Between Thinking and Going Round

Useful thinking usually has an end: a decision, a plan or the sentence “nothing in my hands right now”. A thought that goes round has no end; each answer gives birth to a new question. The difference often shows here: when you finish thinking, can you write one step, or do you feel more tired and more uncertain?

Useful thinking ends with a step, or with “nothing in my hands right now”; a thought that goes round ends with a new question.

One Small Step You Can Try Once

This method may not suit everyone; you do not have to force it. If what goes round in your mind is about a very frightening or distressing event, or images overwhelm you, do not do this writing exercise and see a mental health professional. The full set of skills, from the abstract question to the concrete sentence, pushing thoughts away and redirecting attention without a fight, is worked on step by step in short sessions in the overthinking programme.

When to Get Support

If thought loops clearly disrupt your daily functioning, sleep or relationships, have lasted for months or go with a low mood, it makes sense to see a mental health professional. Thoughts that began after a hard experience and come with images should also be taken to a professional. For details, see the guide when to seek professional help for anxiety.