Letters from the trenches A war-zone journalism finds her dispatches to a prominent European magazine don't quite capture what she's feeling as she's reporting. So Carolin Emcke wrote letters to her friends to give them a sense of what conflict really costs.9:00 a.m.
Carolin Emcke: is an international reporter for Zeit magazine. Before that she was a war correspondent for Der Spiegel magazine. Emcke is the author of the new book, "Echoes of Violence," a collection of her letters to friends from various conflict-ridden places around the world.
Building mental muscles We all know the physical benefits of exercise, but new research is showing that that physical activity can also be good for our brains. The author of a new book says exercise is the most powerful tool we have to optimize brain function.10:00 a.m.
John Ratey: MD, associate clinical professor of psychiatry at Harvard Medical School and author of "Spark: The Revolutionary New Science of Exercise and the Brain."