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The ONE Thing

Behavioral science meets real life in ways you did not see coming. Marshmallows. Menopause. Why you would rather shock yourself than sit with your thoughts.

Short. Sharp. Surprising.

Easy to finish before your morning coffee, hard to forget after.


How this whole thing started.

How this whole thing started.

A simple idea that turned into something I needed to say

Jul 2, 2025

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I’m Ann-Louise.


Also known as Ann, and sometimes Miss Swedish Fish. I am Swedish, 40, pregnant, and a marketer in theory. In practice I read behavioral psychology and then see it everywhere, from aisle five to toddler meltdowns to my own closet of duplicate pants.

Writing is how I stay sane. The ONE Thing is my Monday ritual. One pattern. One insight. One piece of research that explains why humans act the way they do even when we swear we know better.

It matters because the world is loud. Too much content, too little thinking. AI filling every gap. Real insight is rare. Understanding how our brains actually work gives you an edge. It changes how you see people, including yourself.

Most days I am managing life one loose thread at a time. Mondays I get to slow down and follow one idea wherever it leads.

No fluff. No empty inspiration. Just sharp human truth in a short read you can finish before your coffee gets cold.

I write the way I talk, clear and a little sideways, sometimes with cursing.

I’m Ann-Louise.


Also known as Ann, and sometimes Miss Swedish Fish. I am Swedish, 40, pregnant, and a marketer in theory. In practice I read behavioral psychology and then see it everywhere, from aisle five to toddler meltdowns to my own closet of duplicate pants.

Writing is how I stay sane. The ONE Thing is my Monday ritual. One pattern. One insight. One piece of research that explains why humans act the way they do even when we swear we know better.

It matters because the world is loud. Too much content, too little thinking. AI filling every gap. Real insight is rare. Understanding how our brains actually work gives you an edge. It changes how you see people, including yourself.

Most days I am managing life one loose thread at a time. Mondays I get to slow down and follow one idea wherever it leads.

No fluff. No empty inspiration. Just sharp human truth in a short read you can finish before your coffee gets cold.

I write the way I talk, clear and a little sideways, sometimes with cursing.


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