With a mixture of erudition and humor, Canadian radio personality Jay Ingram discusses the sociology of talking: the dynamics of conversation, men and women's different propensities for interrupting, and even the proper use of "you know." But he also delves into the mystery-riddled physiology of talking. While we now know that certain areas of the brain seem to control specific aspects of speech--from articulating words to creating meaningful sentences--how do scientists explain the extraordinary case of the young stroke victim who lost only the words for fruits and vegetables? Is it possible...