It's not violence on the job that makes some pro football players beat their wives or children, psychologists say. It's often childhood experience, fanned by a culture that accepts such behavior.
Angela Stimpson donated a kidney to a complete stranger. Why did she do it? Researchers found that the brains of Stimpson and other altruists are sensitive to fear and distress in a stranger's face.
Palestinian kids in Gaza went back to school this past week in buildings damaged by the war, with children homeless and traumatized, and more than the usual overcrowding they face every year.