Emotional regulation · 4 min read
Why do we overthink?
Overthinking is not a character flaw. It is a strategy that worked once and has outstayed its usefulness.
Almost nobody overthinks about things they do not care about. The loop attaches itself to relationships, work you are invested in, decisions with real consequences, which means it is running on top of something reasonable.
It is an attempt at control
If you can think a situation through thoroughly enough, perhaps you can find the version where nothing goes wrong. That is the implicit promise, and it is why the thinking feels necessary rather than optional. Under uncertainty, mental effort is one of the few things still available to do.
This is also why overthinking tends to increase when the actual control available decreases. Waiting for results, waiting for someone to reply, waiting for a decision that is not yours, those are the classic conditions.
Rumination is what problem-solving does when there is no problem it can reach.
Why it does not stop on its own
Because it is intermittently rewarded. Occasionally you do arrive somewhere useful, and that occasional payoff is enough to maintain the behaviour, the same pattern that makes any unpredictable reward hard to put down. The rest of the time you arrive back where you started, slightly more tired.
What changes it
- Changing the question. From "what is the right answer?" to "what is the next reasonable step, given that I cannot know?"
- Externalising it. Writing or saying it to another person moves it from a loop into a sequence, and sequences end.
- Doing something that occupies attention without demanding it, walking, cooking, being outdoors. Attention cannot easily be turned off, but it can be given somewhere else to be.
- Scheduling it. A deliberate twenty minutes, at a set time, to think about the thing. It sounds absurd and it works more often than it should.
Worth noticing: none of these are "stop thinking". Trying to stop a thought directly tends to make it more available, not less.