Confidence, positivity and decisiveness are all considered traits of good leadership. But what if not so deep down, you are constantly anxious and uncertain and feel like an imposter? Are these qualities that will get in your way as a leader, or could they potentially be an asset? Dr. Julie Norem is a Professor of Psychology at Wellesley College and has literally written the book on this--called "The Positive Power of Negative Thinking." Her research continues to focus on the strategies pessimistic people use to pursue their goals, and on the ways knowing yourself influences your performance and your relationships.