Module 6 · Worry, rumination & thought patterns · Moderate evidence

Rumination: going round in circles

Replaying what went wrong feels like working on it. Usually it isn’t.

7 min read · Level: Beginner · Free — no account needed to read

The idea

Rumination is going over and over something that has already happened — a mistake, an argument, a loss, how you feel — asking why, replaying it, without reaching any new understanding. It is the backward-looking cousin of worry.

It feels like working through the problem, which is why it is hard to stop. But research by Susan Nolen-Hoeksema and others found that people who ruminate on their low mood tend to feel low for longer and are more likely to become depressed. Reflecting in a way that leads somewhere — understanding, a decision, a lesson — is different from going in circles.

Breaking the loop usually means changing what you are doing, not what you are thinking about: switching to an absorbing activity, moving, talking to someone, writing the thought down once, or asking a “how” question (“how can I move forward?”) instead of an endless “why?”.

Why it works

Rumination can quietly deepen and lengthen low mood. Learning to spot and step out of it is one of the most useful mental-health skills there is.

A real example

The situation

After a friend cancels on her, Hana spends the whole weekend replaying their last conversations and asking herself what she did wrong.

What happened

She recognises the loop and asks: is this leading anywhere new? It isn’t. She writes her worry down once, sends her friend a simple message, and spends Saturday afternoon at a pottery class. The loop loosens.

The takeaway

Doing something absorbing did what another hour of thinking couldn’t.

Use this when you are…

• you keep replaying something that happened
• you are asking “why” over and over
• thinking about how you feel is making you feel worse

Common mistakes

• Believing that if you think about it enough, you’ll finally feel better.
• Trying to stop thoughts by force, which often makes them stronger.
• Staying still and isolated while ruminating.

What the evidence says

Moderate evidence: Several studies support it, but the effects are smaller, the studies are fewer or less rigorous, or results vary between groups.

Many studies link rumination with longer and more frequent episodes of low mood and depression, and rumination-focused CBT has promising results. Distinguishing unhelpful brooding from useful reflection is still refined in research.

Where this comes from: Cognitive behavioural therapy (CBT) research; Worry and anxiety research; Behavioural activation research.

Fields that study this: Clinical psychology.

Try it now: Is this leading anywhere?

1. Notice a thought you keep replaying.
2. Ask: in the last ten minutes, have I reached anything new?
3. If not, switch to something absorbing for fifteen minutes — movement, a task, a person.

Practise with a guided technique

• Movement break — (3–5 min · Moderate evidence)
• Expressive writing — (15 min · Moderate evidence)
• Mindful attention to the breath — (5–10 min · Moderate evidence)

Questions to think about

• What do you tend to ruminate about, and when?
• What activities absorb you enough to break a loop?

Try this today

The next time you catch yourself replaying something, switch to an absorbing activity for fifteen minutes.

Afterwards, ask yourself

When you stepped out of a loop, what helped you do it?

Words in this lesson

• Rumination — Going over and over something that has happened — especially how bad you feel — without reaching anything new.