A new technique has drawn wiring diagrams of the brains of the two sexes. The cross-talk in women helps explain their better memories and multitask. In men within-hemisphere links let them focus on things that do not need complex inputs from both hemispheres.

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A new technique has drawn wiring diagrams of the brains of the two sexes. The cross-talk in women helps explain their better memories and multitask. In men within-hemisphere links let them focus on things that do not need complex inputs from both hemispheres.