Mental overload often comes from open loops, not workload.
Have you ever noticed how unfinished tasks seem to follow you around mentally?
Maybe it’s an unanswered email.
Or a phone call you still need to make.
Something sitting on your to-do list for weeks.
Even a decision you haven’t quite made yet.
The thing is, psychology suggests unfinished tasks stay more active in the mind than completed ones.
It’s known as the Zeigarnik Effect, named after psychologist Bluma Zeigarnik, who noticed that waiters in cafés often remembered unpaid orders better than completed ones. Once the bill was paid and the task finished, the memory faded surprisingly quickly.
Our brains appear to keep “open loops” mentally active.
And that means mental clutter is often less about how much we have to do… and more about how many things feel unresolved.
This matters because many of us have dozens of unfinished mental tabs open at the same time. Like:
Reply to that message.
Book that appointment.
Sort out the paperwork.
Make that difficult decision.
Start the thing I’ve been putting off.
Even when we’re resting, part of the mind is still quietly holding onto these unfinished loops.
The power of notes
But here’s the interesting part:
Research suggests that just making a clear plan for a task can reduce the brain’s tension around it – even before you complete the task. And by ‘plan’, I mean even just making a note.
In other words, the brain relaxes when it feels something has been safely “captured.”
Why?
Because the brain tends to experience captured tasks differently from uncaptured ones.
For example, there’s a big psychological difference between:
“I must remember all this” and “This exists somewhere safe.”
You’re effectively telling the nervous system:
“You no longer need to hold this actively.”
This is true not only for unfinished tasks, but also for unfinished thoughts.
Ideas want somewhere to land.
When they don’t, the brain often keeps lightly rehearsing them in the background:
“Don’t lose this.”
“Remember this later.”
“This matters.”
“You should do something with this.”
And that ongoing low-level cognitive holding pattern can become surprisingly draining over time.
That’s why notebooks, voice notes, mind maps, rough outlines, or even a simple handwritten brain-dump can feel strangely calming.
Ultimately, the greatest mental relief sometimes comes not from finishing everything…
but from no longer carrying everything internally.
Try This Today
Take 10 minutes and write down every unfinished task, worry, obligation, or “I must remember that” thought currently circling in your mind.
Everything.
Big or small.
You might be surprised by how much lighter you feel afterwards.
Not because life suddenly changed –
but because your mind no longer has to work so hard keeping all the tabs open.
References (for those who wish to explore further)
Zeigarnik Effect: Zeigarnik, B. (1927). On finished and unfinished tasks. Link.
How making plans reduces intrusive thoughts: Masicampo, E. J., & Baumeister, R. F. (2011). Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Link.
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