How to Stop Overthinking: Evidence-Based Techniques That Help

Overthinking means getting stuck in repeated, circling thoughts, either worrying about things that might go wrong (worry) or replaying things that already happened (rumination). It is not a diagnosis, but it is a thinking pattern that evidence-based techniques such as worry time, behavioural activation, mindfulness and rumination-focused CBT can help you manage, and sometimes it is also a sign of underlying anxiety or depression that benefits from professional support. [1,2]

If you recognise the feeling of your mind "running on a loop" at your desk, at night, or during a quiet moment, you are far from alone. This article explains why the brain overthinks, how to tell worry apart from rumination, and what actually helps, based on NHS, NICE and peer-reviewed guidance.

Worry vs rumination: what is the difference

Both words describe repetitive, hard-to-control thinking, but they usually point in different directions.

• Worry tends to be future-focused. It often starts with "what if" and is linked to anxiety: what if the meeting goes badly, what if I made the wrong decision, what if something happens to someone I love.
• Rumination tends to be past-focused. It circles around things that have already happened and is more closely linked with low mood: why did I say that, why does this always happen to me, what is wrong with me.

In practice the two often blend together, and you can move between them within the same few minutes. Mind describes rumination as repeatedly going over upsetting events or feelings in your mind, often without reaching any resolution, while worry is more commonly discussed alongside anxious "what if" thinking about the future [3,4]. Both can affect sleep, concentration and mood, and both respond to similar practical strategies, which is why they are often grouped together under the everyday term "overthinking".

Why the brain does this

Overthinking can feel pointless, yet it usually starts as an attempt to be helpful. Worry can feel like a kind of problem-solving or preparation, as though turning a situation over enough times will produce a safer answer or stop something bad from happening. Rumination can feel like it might produce insight, an explanation for why something painful happened.

The problem is that this kind of repetitive thinking, sometimes called repetitive negative thinking, rarely reaches a helpful conclusion. Instead, it tends to keep the nervous system in a mildly activated, threat-focused state, and research links persistently high levels of worry and rumination with the onset and continuation of anxiety and depression [1,5]. A University of Exeter research programme is currently studying which elements of CBT work best for reducing this kind of repetitive negative thinking [5].

It can also become a habit: the more often your mind takes the "replay" or "rehearse" route under stress, the more automatic that route becomes.

Worry time: giving your thoughts a container

One of the best-known NHS-recommended techniques is "worry time". Instead of trying to stop worrying altogether, which rarely works, you give your worries a specific, limited slot.

• Notice the worry. When an anxious or ruminating thought appears, briefly note it down (on paper or in your phone) rather than following it immediately.
• Postpone it. Tell yourself, "I will think about this properly later", and gently return your attention to what you were doing.
• Set aside 10 to 20 minutes, ideally not right before bed, as your dedicated worry time.
• During that time, go through your list. For things you can act on, jot down one small next step. For things outside your control, acknowledge them and let them be, rather than searching for a guarantee.

The NHS Every Mind Matters service recommends this approach, alongside writing worries down and using a "worry tree" to separate problems you can act on from hypothetical worries you cannot control [1]. It will not feel natural immediately, and most people need a couple of weeks of practice before postponing a worry feels achievable.

Behavioural activation: changing what you do, not just what you think

When overthinking tips into low mood, one of the most effective responses is not to think your way out, but to act your way out. Behavioural activation is a structured, evidence-based approach recommended by the National Institute for Health and Care Excellence (NICE) for depression, based on the idea that low mood and inactivity can feed each other in a downward spiral, and that gradually increasing meaningful, rewarding or values-based activity can interrupt it [6].

This might look like:

• Scheduling small activities you have been avoiding, even briefly, rather than waiting to "feel like it" first.
• Mixing in things that give you a sense of achievement or pleasure, not only tasks on a to-do list.
• Starting smaller than feels necessary. A five-minute walk counts; it does not need to be a full workout.
• Noticing the link between activity and mood, which can gradually weaken the belief that nothing helps.

This matters for overthinking because rumination often thrives in passive, understimulated moments: lying awake, sitting without distraction, scrolling without purpose. Consistent activity gives the mind something else to engage with. If low mood and inactivity have been building for a while, our depression therapy page explains how a therapist can help structure this kind of change.

Mindfulness: changing your relationship with thoughts

Mindfulness does not aim to empty your mind or stop thoughts appearing. It aims to change how you relate to them, noticing a thought, a worry, a memory, without immediately being pulled into following it. Mind describes mindfulness as bringing attention back to the present moment, which can help create space between you and difficult thoughts rather than being swept along by them [4].

A simple starting practice:

1. Pause and notice three things you can currently see, hear or feel in your body.
2. When a thought pulls your attention away, notice that it has happened without judging yourself for it.
3. Gently bring your attention back to the present moment, as many times as needed.
4. Try this for a few minutes daily, building up gradually rather than aiming for a long session immediately.

Mindfulness develops with repetition rather than being a one-off fix, and it does not suit everyone; some people find a structured course, or combining it with worry time, more sustainable [4]. If anxious thinking is part of a wider pattern that affects daily life, our anxiety therapy page covers other evidence-based options.

CBT and rumination-focused CBT

Cognitive behavioural therapy (CBT) is recommended by the NHS for both anxiety and depression, and works by helping you notice unhelpful thinking patterns, test how accurate they really are, and gradually change related behaviours [7]. The NHS "catch it, check it, change it" approach, catching an unhelpful thought, checking the evidence for and against it, and changing it to something more balanced, is a simple version of core CBT skills that you can start using yourself [8].

For rumination specifically, researchers have developed rumination-focused CBT (RFCBT), a variant built on behavioural activation principles that directly targets the habit of dwelling, rather than only the content of the thoughts themselves. A randomised controlled trial of RFCBT for residual depression found it significantly improved symptoms and remission rates compared with treatment as usual alone, with the benefit linked to a measurable reduction in rumination itself [2]. A more recent systematic review of RFCBT studies found consistent evidence that it reduces depressive symptoms across multiple trials [9].

You can access CBT, including approaches that address rumination and worry, through NHS talking therapies, which you can usually self-refer to without seeing a GP first [7].

Overthinking at night

Nighttime is when overthinking often feels most intense, partly because there are fewer distractions competing for your attention, and partly because tiredness itself lowers your capacity to manage difficult thoughts.

• Do your worry time earlier in the evening, not right before bed, so your mind has already had a chance to "park" the day's concerns [10].
• Keep a notepad by the bed. If a thought surfaces, write a brief note and tell yourself you will deal with it tomorrow, rather than trying to solve it in the dark [10].
• Ask yourself, "is there anything I can actually do about this right now?" If not, practise letting it go until morning; if yes, note the one next step and leave the rest until your proper worry time [10].
• Keep a consistent wind-down routine, dimming lights and avoiding screens where possible, since an overstimulated mind struggles more to settle into sleep.

If racing thoughts at night are a frequent, ongoing problem rather than an occasional bad night, it is worth mentioning this to your GP or to a therapist, since poor sleep and overthinking often reinforce each other.

When overthinking signals something more

Occasional overthinking is a normal, if uncomfortable, part of being human. It becomes worth a closer look when it is frequent, hard to control, and getting in the way of daily life, work, relationships or sleep over a period of weeks, or when it is accompanied by other signs of anxiety or low mood, such as persistent dread, tearfulness, loss of interest in things you usually enjoy, appetite or energy changes, or feeling hopeless [11,12].

This does not mean every overthinker has generalised anxiety disorder or depression, but excessive, hard-to-control worry across many areas of life is a recognised feature of generalised anxiety disorder, and persistent rumination is closely associated with depression [11,12]. A GP or therapist can help you understand what you are experiencing and what support fits. Our overthinking page and free Do I need therapy? check can help you think through whether it is time to seek support, and our burnout therapy page may also be relevant if overthinking is tangled up with work stress and exhaustion.

Frequently asked questions

Is overthinking the same as anxiety?

Not exactly. Overthinking is a thinking pattern, worry or rumination, that can occur on its own or alongside anxiety. When worry becomes excessive, hard to control and persists across many areas of life, it may point towards an anxiety disorder, which is worth discussing with a GP or therapist rather than self-diagnosing [11].

How long does it take for worry time to work?

Most NHS guidance suggests giving techniques like worry time a few weeks of consistent practice before judging whether they are helping, since postponing a worry is a skill that gets easier with repetition rather than an instant fix [1].

Can mindfulness make overthinking worse at first?

Some people notice their thoughts more, not less, when they first try mindfulness, simply because they are paying closer attention to their own mind. This is a common early experience rather than a sign it is failing; with practice, many people find it easier to notice thoughts without being pulled into them [4].

What is the difference between problem-solving and overthinking?

Problem-solving moves towards a decision or action and then stops. Overthinking tends to circle the same ground repeatedly without reaching, or acting on, a conclusion. A useful check is to ask whether a few more minutes of thinking will actually produce a new, usable answer, or whether you are simply replaying familiar ground [3].

Should I just try to distract myself instead?

Distraction can help briefly, but research and clinical guidance generally favour approaches like worry time, behavioural activation and mindfulness, which change your relationship with the thought or your underlying activity levels, over strategies that only avoid the thought, since avoidance alone does not usually address why the thinking pattern keeps returning [1,6].

Key takeaways

• Worry is usually future-focused ("what if"); rumination is usually past-focused ("why did this happen"); both are forms of repetitive, hard-to-control thinking.
• Worry time gives anxious thoughts a specific, limited slot instead of letting them intrude all day or night.
• Behavioural activation interrupts the link between low mood, inactivity and rumination by building in small, meaningful actions.
• Mindfulness changes your relationship with thoughts rather than trying to eliminate them.
• Rumination-focused CBT is a specific, evidence-based therapy that has shown measurable reductions in rumination and depressive symptoms in trials.
• Overthinking that is persistent, distressing or disrupting daily life for weeks may be a sign of anxiety or depression worth discussing with a professional.

Support from MySafeTherapy

If your mind has been stuck in the same loop for weeks, replaying conversations, bracing for what might go wrong, or lying awake running through the day, you do not have to work this out alone. A BACP, UKCP or NCPS registered therapist can help you understand what is driving the pattern and work through techniques like these, and others, at a pace that fits your situation.

Whether what you are experiencing turns out to be a thinking habit worth adjusting, or a sign of anxiety or depression that needs more structured support, starting the conversation is a reasonable first step, and you do not need to have it all figured out before you do.

This article provides general information and does not replace an individual assessment. MySafeTherapy is not an emergency service. If you are in crisis, call 999 or NHS 111, or text SHOUT to 85258.

Sources

[1] NHS Every Mind Matters. Tackling your worries

[2] Watkins and colleagues 2011. Rumination-focused cognitive-behavioural therapy for residual depression: phase II randomised controlled trial

[3] MindWell Leeds (NHS-affiliated service). Rumination

[4] Mind. About mindfulness

[5] NHS England Digital. Calming Minds study, University of Exeter

[6] NICE. Depression in adults: treatment and management, NG222

[7] NHS. Cognitive behavioural therapy (CBT)

[8] NHS Every Mind Matters. Reframing unhelpful thoughts

[9] Li and Tang 2024. A systematic review of the effects of rumination-focused cognitive behavioral therapy in reducing depressive symptoms

[10] Oxford Health NHS Foundation Trust CAMHS. Set aside worry time

[11] NHS. Generalised anxiety disorder in adults

[12] Royal College of Psychiatrists. Anxiety, panic and phobias