The best analogy about “executive function” I’ve heard was from my physician when I asked her how can a stimulant possibly make the brain more calm? She said imagine a grade-school classroom with a teacher who is hungover and groggy. She loses control of the students and they run wild. But then she has a strong cup of coffee. When it wakes her up she yells at the kids to sit down and get to work, and the room becomes orderly.
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