How to Stop Thinking About Someone
Expert Advice
Can't stop thinking about someone? Learn 10 science-backed strategies to break free from obsessive thoughts and reclaim your mental peace.
You check your phone. Nothing. You close your eyes. Their face. You try to focus on work. Your mind drifts back to them. Again.
"How do I stop thinking about someone?" is one of the most searched questions online. If you're here, you already know why—because intrusive thoughts about someone (an ex, a crush, someone unavailable) can completely take over your life.
The good news? It's possible to break free. Here's how.
If your thoughts spike around distance, silence, or mixed signals, your attachment pattern may be part of the loop. Take our free attachment style quiz to understand your triggers before you start changing them.
Why You Can't Stop Thinking About Them
Before we get to solutions, you need to understand why your brain is stuck on this person.
1. Your Brain is Experiencing Withdrawal
When you're attached to someone (romantically or obsessively), your brain releases dopamine, oxytocin, and other feel-good chemicals when you interact with them or even think about them.
When they're gone or unavailable, you go through actual withdrawal—similar to addiction.
2. Unfinished Business Creates Loops
Your brain hates open loops. If there was no closure, if things ended badly, if you never got to say what you wanted—your mind replays scenarios trying to "finish" the story.
3. Idealization Makes It Worse
When you can't have someone, your brain tends to idealize them. You forget their flaws. You romanticize what could have been. This makes the obsession stronger.
4. Boredom Amplifies Thoughts
If your life lacks purpose, excitement, or fulfillment, your brain fills the void with thoughts of this person. They become your entertainment, your drama, your emotional escape.
How to Stop Thinking About Someone: 10 Proven Strategies
1. Track Your Intrusive Thoughts
Why it works: Awareness is the first step. You can't change what you don't measure.
How to do it:
- Every time you think about them, make a note (use an app like Uncling)
- Track: Time of day, what triggered it, how long it lasted
- Over weeks, you'll see patterns and frequency will decrease
This isn't about punishing yourself—it's about becoming conscious of unconscious patterns.
2. Implement Strict No Contact
Why it works: Every text, every social media check, every "accidental" encounter resets your healing clock.
How to do it:
- Block/unfollow on all platforms
- Delete their number (or give it to a friend to hold)
- Avoid places you know they'll be
- Track your no contact days (accountability helps)
No contact isn't forever. It's until you've healed enough that seeing them doesn't hurt.
3. Redirect the Thought (Don't Suppress It)
Why it works: Trying NOT to think about something makes you think about it more (try not to think about a pink elephant right now).
How to do it:
Instead of fighting the thought, acknowledge it and redirect:
- "I'm thinking about them again. That's normal. But right now, I'm going to [specific action]"
- Have 3-5 redirect activities ready: Call a friend, do push-ups, play a game, watch a comedy
The key is replacement, not resistance.
4. Question Your Idealization
Why it works: You're probably thinking about a fantasy version of them, not reality.
How to do it:
Write down:
- 10 things that were actually wrong in the relationship/situation
- 5 ways they hurt you or let you down
- 3 red flags you ignored
Read this list when you start romanticizing them.
5. Fill the Void They Left
Why it works: Obsessive thoughts thrive in emptiness.
How to do it:
- Start a project you've been putting off
- Learn a new skill (language, instrument, coding)
- Join a group/community around an interest
- Exercise (literally changes brain chemistry)
You need to become SO busy improving your life that you don't have time to obsess.
6. Use the Rubber Band Technique
Why it works: Creates a physical interrupt pattern.
How to do it:
- Wear a rubber band on your wrist
- When you catch yourself obsessing, snap it lightly
- The slight sting interrupts the thought pattern
- Then redirect to something productive
This trains your brain to associate the obsessive thought with a negative stimulus.
7. Set "Worry Time"
Why it works: Instead of fighting thoughts all day, you contain them.
How to do it:
- Schedule 15 minutes per day as "thinking about them time"
- When intrusive thoughts come at other times, tell yourself "I'll think about this at 7pm"
- During your scheduled time, let yourself feel everything
- When time's up, close the chapter until tomorrow
Paradoxically, permission to think about them (in a controlled way) reduces obsession.
8. Talk to Someone Who Understands
Why it works: Keeping thoughts bottled up amplifies them.
How to do it:
- Find a friend who won't judge
- Join an online support group (r/ExNoContact, r/limerence, or use Uncling)
- Consider therapy if thoughts feel uncontrollable
The key is talking to people who GET IT. Not people who say "just move on."
9. Physical Exhaustion Helps
Why it works: A tired body quiets an anxious mind.
How to do it:
- Intense cardio (running, cycling, HIIT)
- Manual labor or physically demanding hobbies
- Tire yourself out before bed (helps with sleep)
When your body is exhausted, your mind has less energy to obsess.
10. Accept That Healing Isn't Linear
Why it works: Self-compassion prevents relapse.
How to do it:
- Some days you'll think about them constantly
- Other days you'll forget they exist
- Both are normal
- Progress isn't perfection—it's trending upward
Don't beat yourself up on bad days. They're part of the process.
How Long Until I Stop Thinking About Them?
The honest answer: It depends.
- With no contact + active coping: 3-6 months for significant improvement
- If you keep checking on them: Could be years
- If it's limerence (obsessive love): 18 months to 3 years without intervention
Using tools like thought tracking, no contact counters, and community support can cut recovery time in half.
When Intrusive Thoughts Become Obsession
If you're experiencing:
- Thoughts that consume 4+ hours per day
- Inability to function at work/school
- Physical symptoms (can't eat, can't sleep)
- Stalking behaviors
You might be dealing with limerence or obsessive love disorder. This is real, it's not your fault, and it requires specific strategies.
The Most Important Thing
Don't wait to feel better to take action. Take action to feel better.
You won't wake up one day magically not thinking about them. You have to actively retrain your brain through consistent, repeated effort.
Every day you practice these strategies, you're building new neural pathways. Eventually, the thought of them becomes quieter, then occasional, then just a memory that doesn't hurt.
You can do this. Thousands have. You're not alone.
Need accountability and tracking tools to stop obsessive thoughts? Download Uncling to track your no contact progress, journal your thoughts, and connect with others who understand what you're going through.
Related breakup recovery guides
- The No Contact Rule Explained
- 30 Days of No Contact: What Changes, What Does Not, and What Comes Next
- Why Fall Brings Back Memories of Your Ex—and How to Stay Grounded
Take the free attachment style quiz to see how your attachment pattern shapes your breakup recovery.
Uncling publishes self-help content for education and self-reflection. It is not therapy, diagnosis, or clinical advice. If you are in crisis or thoughts of self-harm are present, contact a licensed mental health professional or your local emergency services. In the US and Canada you can call or text 988 to reach the Suicide & Crisis Lifeline.