How to Deal with Intrusive Thoughts: A Gentle Way Through

An intrusive thought is a single unwanted thought, image, or urge that pops in uninvited; trying to push it away tends to backfire and make it louder. The better approach: name it as just a thought, ground yourself, then use a short round of bilateral stimulation (BLS), the technique behind EMDR, to settle the jolt it leaves behind.

You’re brushing your teeth, or waiting at a red light, and it flashes in: a thought or image so strange, dark, or out of character that it stops you cold. It’s gone in a second, but the unsettled feeling it leaves behind sticks around, and you start wondering what it says about you that your own mind produced that.

Why do intrusive thoughts show up in the first place?

You’re not alone in this, and it isn’t a sign that something is wrong with you. The American Psychological Association defines an intrusive thought as one that interrupts whatever you’re doing despite your efforts to avoid it: unwanted, often disturbing, and hard to switch off on command. A 2014 study spanning 13 countries found that 93.6% of 777 people surveyed had experienced at least one in the past three months.

That mismatch, an unkind or bizarre thought from an otherwise kind, ordinary person, is exactly what makes it so unsettling. It’s also exactly why it’s so common: a busy, tired, or stressed mind produces more of these flashes, not fewer. An intrusive thought also differs from rumination, the mind circling the same worry on a loop; this is usually a single, sudden flash you never invited, gone as fast as it arrived.

Why does pushing it away make things worse?

Fighting a thought’s content tends to backfire. In a well-known 1987 study in the Journal of Personality and Social Psychology, people told not to think about a white bear ended up thinking about it more than people never given the instruction at all. Pushing a thought out of mind tends to bring it right back.

What works better is naming it and letting your attention move on your own terms: “that’s a thought, not a fact,” then a gentle shift toward whatever’s actually in front of you. A short, structured practice can help more here than willpower alone.

Ground yourself first

Before working with the thought on purpose, spend a minute somewhere calmer. Picture a real or imagined place where you feel steady, or run through a fast grounding check: name what you can see and hear right now, feel your feet on the floor, slow your exhale.

The goal is staying alert enough to notice the thought without getting pulled into its content. If you’re already flooded or panicking, ground yourself and leave it there for today.

Go slow: one thought at a time

Work with whichever single thought is loudest right now, not every unwanted thought you’ve ever had. Trying to work through a whole backlog in one sitting is more than any nervous system can hold steady.

Keep each round short, seconds rather than minutes, and expect to return to this more than once. Settling one thought a little at a time beats trying to fix everything today.

Know your stop point

If your distress climbs above a 7 out of 10 and doesn’t settle back down, stop. Ground yourself again, and consider working with a professional rather than pushing through alone. That’s useful information about how much weight this particular thought carries, not a sign you’re doing something wrong.

A short bilateral stimulation practice for an unwanted thought

With those three pieces in place, here’s a short round of bilateral stimulation (BLS), the rhythmic left-right technique at the center of EMDR:

• Rate it. On a 0–10 scale, how much charge does the thought carry right now? Note the number.
• Name it, briefly. Let the thought or image surface for a moment, without diving into its content or arguing with it. “That’s a thought, not a fact.”
• Add bilateral stimulation. Move your eyes smoothly left and right for 20 to 30 seconds, tap your knees or shoulders left-right (the butterfly hug), or use alternating left-right audio tones through headphones.
• Pause and notice. Breathe. Notice anything that shifted, quieter, duller, more distance, without forcing it.
• Repeat 3 to 5 short rounds, checking in after each one.
• Re-rate the charge. Many people notice the number drop. If it climbs instead and won’t come back down, stop, ground yourself, and pick this up another day.

Pacing rounds and tracking numbers while an unwanted thought is loud is a lot to hold on your own. EmEase, a self-guided EMDR app, runs the same left-right technique for you, a moving on-screen target or alternating tones, at whatever pace you set, in the web app.

Is this the same thing as OCD?

Usually not. The International OCD Foundation is clear that most people notice an unwanted thought, feel briefly unsettled, and move on with their day. What separates OCD is the pattern around it: thoughts arriving often, triggering intense distress, and getting tangled with compulsions, like checking, mental reviewing, or seeking reassurance, aimed at neutralizing them.

Content alone doesn’t predict a diagnosis. This practice doesn’t diagnose or treat OCD; it’s a wellness technique for the everyday, occasional version of an unwanted thought. If that compulsive pattern sounds familiar, or you’re already taking medication for OCD or anxiety, bring the fuller picture to a licensed professional trained in treating it directly, and never start, stop, or change medication without your prescriber.

Does this actually work, or is it just a distraction?

There’s a specific, tested mechanism behind it, not just a change of subject. A 2013 meta-analysis in the Journal of Behavior Therapy and Experimental Psychiatry found that making eye movements while holding a distressing memory or image in mind reliably reduced how vivid and emotionally loud it felt. The idea is that bilateral stimulation competes for the same limited mental workspace a vivid thought depends on to stay sharp.

Be honest about the limits, too: this research is about lowering the vividness of a held memory or image, not proof that a few rounds erase a thought for good, and it hasn’t been tested specifically for OCD-level intrusive thoughts practiced without a therapist. If the same theme keeps circling back rather than showing up once and fading, that’s behaving more like a trigger than a stray thought; our hub on calming triggers and distressing memories covers that pattern, and does EMDR help with intrusive thoughts? walks through the fuller research picture.

An unwanted thought passing through doesn’t say anything about who you are. If what keeps replaying is closer to a specific, real memory than a stray thought, how to stop thinking about a bad memory walks through a version built for that. For more on why intrusive thoughts happen at all, our glossary entry goes deeper.