David H Rosmarin PhD is an associate professor at Harvard Medical School, a program director at McLean Hospital, and founder of Center for Anxiety, which services more than 1,000 patients a year in multiple states. He is an international expert on spirituality and mental health, whose work has been featured in Scientific American, The Boston Globe, The Wall Street Journal, and The New York Times. Through his work as a clinical psychologist, scientist, educator and author, he has helped thousands of patients and organisations to live happier and more productive lives. His most recent book is Thriving with Anxiety: 9 Tools to Make Your Anxiety Work for You.