Overthinking: how to stop overthinking and calm your mind

Overthinking, known in psychology as repetitive negative thinking (RNT), is not deep problem-solving. It is repeating the same thoughts over and over without reaching a real solution. It most often appears in two forms: rumination, which is returning to the past and analyzing mistakes, and worry, which is predicting negative scenarios in the future. Although it can feel useful, this style of thinking usually does the opposite: it raises tension, lowers mood, and makes real action harder.

Why overthinking persists

To understand why this happens and why it is hard to stop overthinking, we need to look not only at thoughts themselves but at how we relate to thinking. In psychology this is called metacognitive beliefs: beliefs about how the mind works and whether our thinking helps us or harms us. Importantly, both so-called positive and negative beliefs in this context can maintain the problem.

At first, the beliefs seem reasonable and helpful. They sound like: I need to think this through to find a solution, if I keep thinking about it I will be better prepared, or analysis will help me avoid mistakes. These beliefs push us into intensive mental analysis, but instead of clear conclusions we get pulled deeper into thought loops. The brain tags this as important and activates a process that was supposed to help, but in practice becomes a trap.

After a while, when thinking becomes excessive, a second layer appears: negative beliefs. This is when thoughts like I cannot stop thinking about this, this is destroying me, or something is wrong with me show up. The key problem starts here: we are no longer only thinking about the situation, we are also afraid of the fact that we are thinking. That extra stress strengthens the loop even more.

As a result, a vicious cycle forms. First, a thought or emotion triggers analysis. Then rumination starts, meaning the same scenarios are replayed again and again. Instead of relief, tension grows, so we try to control thoughts even harder, question why we cannot stop, and judge ourselves as overloaded or too analytical. This deepens the process and makes it increasingly automatic.

How to break overthinking

From the perspective of CBT, MBCT, and MCT, the key is not to stop thinking completely, but to change your relationship with thoughts. Thoughts are not facts - they are mental events that appear and pass. The problem starts when we treat every thought as something that must be solved immediately or believed without checking.

One of the simplest ways to interrupt overthinking is learning cognitive distance. Instead of this will happen, notice I am having the thought that this will happen. That small change creates space between you and the thought, so it no longer automatically controls emotions and behavior. Another important element is learning that not every thought requires an immediate reaction.

It also helps to deliberately redirect attention to external reality: what you see, hear, and feel in your body. Overthinking happens in your head, so bringing attention to present-moment experience interrupts the loop. This is not about fighting thoughts or forcing them away, but about changing how much attention you give them.

The most important point is this: the problem is not that thoughts appear, but that we enter into a constant dialogue with them and treat them as urgent problems to solve. When we learn to notice thoughts without automatically following them, the loop gradually weakens.

In practice, it can also help to use tools that support this process daily. One example is the Innerio app - a simple CBT journal that helps you notice automatic thoughts, name them, and gradually reframe them. This makes it easier to spot overthinking loops early and interrupt them before they become stronger.