Brain changes explain why teens have no fear
Social affairsJan 11, 2011
WASHINGTON (AFP) -- The brain undergoes changes in adolescence that suppress fearful experiences learned in childhood, said a study released Monday that could explain why teenagers act so brashly at times. Scientists studied the fear responses of mice for clues about how adolescents would react to situations that resembled prior experiences that involved pairing of electric shocks and tonal n