Bob Shumaker, a former POW in Vietnam, describes how he and his fellow prisoners developed a social network that was crucial to their surviving three years in solitary confinement. They succeeded by creating a tap code that allowed them to communicate through their cell walls.
Dr. Bruce McEwen, Director, Hatch Laboratory of Neuroendocrinology at Rockefeller University, answers the questions, What is stress? Does stress harm the brain? and, What can we do to protect ourselves from stress?