Overthinking is one of the most common concerns people bring to therapy. It often feels like a repetitive cycle of analysing past situations, worrying about the future, or constantly questioning decisions. Many people describe it as the feeling that “my mind won’t switch off.”

While overthinking can feel overwhelming, it is not a personal flaw. From a psychological perspective, it is usually linked to anxiety, rumination, and difficulty tolerating uncertainty.

What Causes Overthinking?

Overthinking is closely connected to two common thinking patterns: rumination and worry.

Rumination involves repeatedly focusing on past events, often centred on mistakes, regrets, or “what went wrong.” Worry is future-focused and involves anticipating potential threats or negative outcomes (Nolen-Hoeksema, 2000; Borkovec et al., 1983).

Although both processes can feel like problem-solving, they often do not lead to effective solutions and can keep the mind stuck in repetitive loops.

Why the Mind Gets Stuck in Overthinking

The brain often overthinks in an attempt to create certainty and control. When something feels uncertain or emotionally important, the mind tries to “think its way out” of discomfort.

However, research shows that repetitive thinking often increases distress rather than reducing it (Watkins, 2008). Instead of solving problems, it can reinforce anxiety and keep attention locked on perceived threats.

Another factor is metacognitive beliefs—beliefs about thinking itself. For example, believing that “worrying helps me prepare” can unintentionally maintain overthinking patterns (Wells, 2009).

Is Overthinking Linked to Anxiety?

Yes. Overthinking is commonly associated with anxiety, stress, and low mood. It is also more common in individuals who are highly conscientious or sensitive to risk.

While these traits can be strengths, they may also increase the tendency to overanalyse situations.

How to Stop Overthinking: Evidence-Based Strategies

Overthinking is a learned mental habit, which means it can be changed with evidence-based psychological strategies. Rather than trying to forcefully eliminate your thoughts, modern therapies focus on changing your relationship with them.

Effective approaches include:

  • Cognitive Behavioural Therapy (CBT): Helps you identify unhelpful thought patterns, challenge catastrophic predictions, and replace them with more balanced perspectives.
  • Acceptance and Commitment Therapy (ACT): Teaches mindfulness skills to help you acknowledge your thoughts without fighting them, allowing you to focus your energy on meaningful actions (Hayes et al., 2006).

When to Seek Professional Support in Adelaide

If overthinking affects your sleep, concentration, mood, or daily functioning, therapy can help. A psychologist can support you in identifying thought patterns and developing more helpful ways of responding to uncertainty.

At Prime Path Psychology, we offer evidence-based therapy for overthinking, anxiety, and related concerns at our Adelaide psychology clinic and via online telehealth consultations across Australia.

Ready to quiet your mind? Contact us today to book an appointment.

Frequently Asked Questions About Overthinking

Why do I overthink everything I do?

Overthinking often happens when your brain is trying to reduce uncertainty or avoid mistakes. It is commonly linked to anxiety, perfectionism, and worry patterns.

Is overthinking a mental health disorder?

No. Overthinking itself is not a disorder, but it is commonly seen in anxiety disorders, depression, and stress-related conditions.

What is the 5-5-5 rule for overthinking?

The 5-5-5 rule is a grounding technique used to stop an active overthinking loop. Look around you and name five things you can see, five things you can hear, and five things you can physically feel to bring your awareness back to the present moment.

Can a psychologist help me stop overthinking?

Yes. Evidence-based therapies can help you understand why overthinking happens and teach practical strategies to reduce it and improve mental clarity.

References:

  • Borkovec, T. D., Robinson, E., Pruzinsky, T., & DePree, J. A. (1983). Preliminary exploration of worry: Some characteristics and processes. Behaviour Research and Therapy, 21(1), 9–16.
  • Hayes, S. C., Luoma, J. B., Bond, F. W., Masuda, A., & Lillis, J. (2006). Acceptance and commitment therapy: Model, processes and outcomes. Behaviour Research and Therapy, 44(1), 1–25.
  • Nolen-Hoeksema, S. (2000). The role of rumination in depressive disorders and mixed anxiety/depressive symptoms. Journal of Abnormal Psychology, 109(3), 504–511.
  • Watkins, E. R. (2008). Constructive and unconstructive repetitive thought. Psychological Bulletin, 134(2), 163–206.
  • Wells, A. (2009). Metacognitive therapy for anxiety and depression. Guilford Press.