Frontline: Inside the Teenage Brain

A look at neurological reasons teenagers act the way they do, including examples of the moody and risky behavior caused by the neurological changes of adolescence. "In many ways," says Jay Giedd of the National Institute of Mental Health, "it's the most tumultuous time of brain development since coming out of the womb." Augmenting interviews with neuroscientists, educators, parents and teens is a running commentary by cartoonist Jim Borgman, who charts teen life in his comic strip "Zits."