Quote

Within the brain, neurons compete. Unused neurons are eliminated; the winners survive, and if used often, eventually get insulated with a layer of white fatty tissue, which exponentially increases the speed of transmission. In this way, gray matter gets upgraded to white matter. This doesn’t happen throughout the brain all at once; rather, some parts of the brain can still be adding gray matter while other regions are already converting it to white matter. However, when it occurs, this upgrade can be rapid—in some areas, 50% of nerve tissue gets converted in a single year.

Quote ID: 01032

Author

Po Bronson, Ashley Merryman

Source

Nurtureshock

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