Why are the ’tween and early-teen years so hard on parents? It’s all in the brain, say medical researchers. Between ages 11 and 14, kids lose a significant portion of cell connections in the part of the brain that maintains alertness and enables good decision-making. The loss, say the scientists, is an essential part of growing up: It prunes “unneeded wiring” to make way for more efficient information-processing in adulthood.

Source: San Jose

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