What’s Individuality, and Where Does It Come From?


In this article for Scientific American, I dig into one of mankind’s oldest and deepest questions: What’s that special something that makes you different from me? Where does it come from, an how early can we find it? A new German study may have found some surprising answers to these age-old mysteries.

Three months later, the researchers reexamined the mice, and found not only that their brains had grown more and more individually distinct over time, but that the brains of the mice with the highest roaming entropy had grown and changed the most of all. Specifically, these mice sprouted far more new nerve cells in their hippocampus – a brain region crucial for forming and retrieving memories in mice and in humans – than less adventurous mice did.

Read more of my article at Scientific American.

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