675 Exercise and the Brain

Exercise is essential for keeping the heart and circulatory system healthy. It helps, too, to moderate blood sugar and control metabolism. Now, animal research suggests that physical fitness also benefits the brain. Guest: John Ratey, MD, is an associate clinical professor of psychiatry at Harvard Medical School and has a private practice in Cambridge, Massachusetts. He has co-authored Driven to Distraction: Recognizing and Coping with Attention Deficit Disorder from Childhood through Adulthood with Dr. Ned Hallowell. His most recent book is Spark: The Revolutionary New Science of Exercise and the Brain.