Sarah D. Pressman, PhD, is a professor of psychological science and associate dean of undergraduate education at the University of California, Irvine. She received her BSc from Mount Allison University in biopsychology, her MS and PhD from Carnegie Mellon University in social, personality, and health psychology, and she completed postdoctoral training in cardiovascular behavioral medicine at the University of Pittsburgh Medical Center. Dr. Pressman's expertise is on the interrelations between positive psychological factors, stress, and health, and she has received numerous awards (e.g., from the American Psychological Association Division 38 and the American Psychosomatic Society) for her contributions in these areas. Her work on positive psychology relevant topics has been cited over 9500 times (h-index 35) and has been widely featured in popular outlets like the Wall Street Journal, CNN, NPR, and The New York Times. She was a contributor to the first book, Activities for Teaching Positive Psychology, and used various activities from the initial book extensively in her own positive psychology courses. Beyond that, she is considered a world expert on the importance of positive emotions for physical well-being and has been invited to speak at dozens of national and international meetings for this purpose. Finally, Dr. Pressman is an award-winning and well-rated instructor with experience teaching thousands of students about positive psychology and related courses over the last dozen years.

Acacia C. Parks, PhD, received her BA in psychology from Reed College and her PhD in psychology from the University of Pennsylvania, where she received training in psychological assessment as well as cognitive-behavioral therapy for mood and anxiety disorders. Her research and practice focuses on self-help methods for increasing well-being via digital technology and books, with an emphasis on self-reported emotional outcomes, but also objective and observable outcomes, such as changes in workplace behavior, physiological indicators, etc. Her research has helped build the foundations for how to translate scientific well-being interventions to the general public, and her expertise in this area is affirmed by over 5,500 citations of her articles in scientific journals (h-index 23), three edited books, and 10 years of associate editorship at the Journal of Positive Psychology. As lead consultant at Liquid Amber, she is a digital health executive and scientific advisor with deep knowledge of scientific and regulatory strategy in digital therapeutics, as well as clinical product design, including coaching strategy. Prior to her work in industry, she was an associate professor of psychology at Hiram College, where she taught courses in positive psychology, abnormal psychology, research methodology, and critical writing. For the past 20 years, she has made it her mission to bring evidence-based, destigmatized health care to the public.