We often talk about exercise in the context of cardio or strength training, but there's another pillar of fitness that is especially important as we age: mobility. Dr. Sanjay Gupta sits down with Dr. Kelly Starrett, physical therapist and co-author of “Built To Move: The Ten Essential Habits to Move Freely and Live Fully,” to break down what mobility is, why it's important, and how we can in fact become more mobile and live pain-free.   Learn more about your ad choices. Visit podcastchoices.com/adchoices