Positive thinking habits often get sabotaged by a tiny word: 'but'. One of the most common examples is when we make a positive statement about life, then immediately undermine it with a “but.”
- “I had a good day, but I’ve still got so much to do.”
- “I enjoyed seeing my friends, but I felt awkward at times."
- “I’m proud of myself, but I could have done more.”
That tiny word but, so often paired with a comma, might seem harmless. Yet in psychology, it’s a telltale sign of negative thinking patterns commonly associated with anxiety and depression. For me, as a coach and therapist, the “comma and but” combination has the power to undo the benefits of positive thinking, fuelling negativity that doesn’t need to exist.
In this blog, I’ll explain why ending on a full stop instead of a “but” matters for your mental health and well-being, what research says about this habit, and how you can retrain your brain with simple daily practices.
The Psychology of “Comma and But” Thinking
1. Cognitive distortions
Cognitive therapy pioneer Aaron Beck described ‘discounting the positive’ as one of the most common cognitive distortions in anxiety and depression. Adding but after a positive statement is a linguistic red flag of this type of distortion. It’s a way of saying: “Yes, something good happened, but it doesn’t really count.”
2. The negativity bias
Research in psychology and neuroscience suggests that humans are naturally inclined to pay more attention to negative stimuli than to positive ones. When you attach a but to your sentence, your brain prioritises the negative clause that follows. The good moment gets overshadowed by negative self-talk.
3. Neuroplasticity and habit formation
Every time you say “but,” you strengthen the neural pathways that cancel positives. Over time, this becomes automatic, much like training your brain to suppress joy, pride, or satisfaction before you can fully experience it. This kind of thinking habit is common in depression and anxiety, and it can quietly undermine emotional well-being.
Why the Full Stop Works for Positive Thinking Habits
A full stop creates a clean boundary, letting positive moments stand on their own.
- “I had a good day.”
- “I enjoyed seeing my friends.”
- “I’m proud of myself.”
That’s it, no conditions, nor hidden clauses.
In Acceptance and Commitment Therapy (ACT), this practice resembles mindfulness and present-moment awareness, acknowledging experiences as they are, rather than rushing to qualify or diminish them. By using the full stop, you’re telling your brain: “This is enough. This counts.”
How to Practise the Full Stop Habit and Build Positive Thinking Habits
You don’t need to ignore challenges or difficulties; you need to separate them, so they don’t cancel out the good. Instead of: “I had a good day, but I’ve still got so much to do", try: “I had a good day. I’ve still got things on my plate, and I’ll deal with them tomorrow.”
This way, both truths exist, but the positives aren’t erased.
Daily Exercises For Positive Thinking
Here are three practical ways, which clients tell me really work, to build the positive thinking habits of ending with a full stop:
1. The Full Stop Journal
Each evening, write down three positive affirmations about your day. End them with a full stop. Do not add a “but.” For example:
- “I completed a project.”
- “I cooked a healthy dinner.”
- “I called a friend.”
2. Separate Sentences Technique
When you feel tempted to use “but,” practise breaking your thought into two sentences: one for the positive, one for the challenge. This shift retrains your brain to give equal weight to both, improving mental resilience.
3. Spot the “But”
For one week, pay attention to how often you add “but” to positive statements. Awareness is the first step in breaking the negative thought cycle. Ideally, ask someone else whom you trust to make a note, too, of when you drop a but into your sentences.
Why This Small Change Matters For Positivity
Ending your positive statements with a full stop helps you:
- Enhance mental health by allowing positive experiences to take root.
- Build resilience by training your brain to focus on the positives.
- Reduce anxiety and rumination by breaking the cycle of negative thinking.
- Boost self-esteem by allowing satisfaction and pride to exist without conditions.
- Strengthen emotional well-being by reframing how you talk to yourself.
The “comma and but” habit is a subtle form of negative self-talk that invisibly chips away at our psychological well-being. The full stop is a small act of mental hygiene, one that can reshape how you think, behave, feel and relate (to people, places and 'stuff').
A Handy Script Bank (Before/After Swaps)
Self-talk
- “I’m proud of myself, but it’s not much.” → “I’m proud of myself. And here’s my next step.”
- “I handled that meeting well, but I stumbled once.” → “I handled that meeting well. And I’ll refine that point.”
Work
- “Great progress, but we’re behind.” → “Great progress. And we’re still behind. Let’s prioritise A, then B.”
- “Thanks for the draft, but it needs changes.” → “Thanks for the draft. And here are the changes to make it land.”
Relationships
- “I hear you, but I’m busy.” → “I hear you. And I’m busy; I can do ten minutes at 4pm.”
- “That was fun, but the venue was noisy.” → “That was fun. And the venue was noisy. Next time, somewhere quieter.”
Health
- “I went for a walk, but only for fifteen minutes.” → “I went for a walk. And tomorrow I’ll aim for twenty.”
- “I cooked from scratch, but it wasn’t perfect.” → “I cooked from scratch. And I’ll tweak the recipe.”
When ‘But’ Helps (Boundaries & Safety)
This isn’t a ban on the word. ‘But’ is useful when you need a clear limit, risk warning, or non-negotiable boundary.
- “I understand the request, but I can’t commit this week.”
- “I appreciate the idea, but it’s not safe.”
- “I’d like to help, but I’m not available; and here’s an alternative.”
Use ‘but’ for firm boundaries. Use a full stop or ‘and’ to protect positives and momentum.
Positive thinking habits and Cultivating A Positive Mental Attitude
Next time you notice yourself saying, “I had a good day, but…” — stop. Try ending the sentence there. Give yourself permission to hold the positive without negotiation. Take it from me, the most powerful mental health practice you can do is to end with a full stop.