How does our brain learn new information?

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Brain is an enormously complex network of billions of neurons connected by more than 90,000 miles of fibers—long enough to traverse Russia’s coastline four times. This intricate architecture allows us to absorb information quickly and efficiently. Learning mainly takes place at synapses, the junctions between neurons where information is relayed. A synapse’s performance changes when we learn something new, obeying the principle that “cells that fire together, wire together.”