In this episode of Talk Nerdy, Cara is joined by Michael Lemonick, the Opinion Editor at Scientific American.  They talk about his book, "The Perpetual Now: A story of amnesia, memory, and love."  He shares the tale of a woman whose brain was ravaged by encephalitis, disrupting her ability to form new memories and destroying her recollections from the past. However, her intellect and artistic ability remained relatively intact, providing researchers with insights into the wonders of the human mind. Follow Michael: @MLemonick.