Kelly chats with Dr. Sara Mednick, a research scientist at the prestigious Salk Institute for Biological Studies in La Jolla, and the author of Take A Nap! Sara believes that we can change our lives by taking a nap during the day. Not only can we be more alert, but we can become smarter, healthier and more productive. We can lower the risk of having a heart attack, as well as reduce our weight and improve our memory. Sara's research has shown that after a nap people perform better on cognitive tests, and they can work longer hours.