Gardening in the brain: Cells called microglia prune the connections between neurons, shaping how the brain is wired

Gardeners know that some trees require regular pruning: some of their branches have to be cut so that others can grow stronger. The same is true of the developing brain: cells called microglia prune the connections between neurons, shaping how the brain is wired, scientists have discovered. The findings could one day help understand neurodevelopmental disorders like autism.

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