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Why You Keep Experiencing What You’re Thinking About

The Reticular Activating System explained — and how to make it work for you

Molly MissUnderstood's avatar
Molly MissUnderstood
Aug 14, 2025
∙ Paid

Have you ever bought a new car and suddenly started seeing that same make and model everywhere? Or learned a new word, and suddenly it seems to pop up in every conversation or book?

That’s not magic. That’s your Reticular Activating System (RAS) at work.

🧠 What is the RAS?

The RAS is a network of neurons located in your brain-stem. One of its main jobs is

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