Author Kathleen Hall sits down with Dr. Oz in intimate interview detailing what she calls “The Four Roots” of ultimate happiness. Kathleen credits her amazing life lessons from following the Dalai Llama and studying with world-renowned medical experts, to even living alone in a cabin in the woods for a year in order to fully understand the deep roots of joy and applying them to your everyday life.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers