From work responsibilities to social engagements to family commitments, our days are jam-packed, and it can be tough to give your brain a break. Rest is an important ingredient for good health, but do you really understand why? On this episode of Chasing Life, Professor Victoria Garfield, who studies sleep and how it impacts our brains and our bodies as we get older, explains what it is about rest that is so good for our brains. Why it’s so important to take time to relax and what surprising new research tells us about the simple act of napping.To learn more about how CNN protects listener privacy, visit cnn.com/privacy