Teen Aggression May Really Be a State of Mind

For parents of emotionally combative teens, new research offers a powerful biological reason for all the family feuding—adolescent brain size. A team of Australian scientists has found that when key regions of the brain known for controlling emotions are bigger, boys and girls tend to be more aggressive and more persistent during their fights with Mom and Dad.

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Prefrontal and amygdala volumes are related to adolescents’ affective behaviors during parent–adolescent interactions
PNAS published February 25, 2008

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