Kristin Neff, Ph.D., is an Associate Professor of Educational Psychology at the University of Texas at Austin and a pioneer in self-compassion research, having conducted the first empirical studies in the field. She is the author of Self-Compassion: The Proven Power of Being Kind to Yourself (William Morrow, 2011) and co-founded the nonprofit Center for Mindful Self-Compassion (CMSC).

Mieshelle Nagelschneider is an American cat behaviorist, author of the eponymously titled book The Cat Whisperer and founder of The Cat Behavior Clinic in Portland, Oregon..

Lisa Feldman Barrett is a neuroscientist, psychologist, and author known for her work on the science of emotion. She is the author of How Emotions Are Made: The Secret Life of the Brain and Seven and a Half Lessons About the Brain. A world expert in the psychology of emotion, she is also an elected member of the Royal Society of Canada and has received funding from the National Institutes of Health.

Bessel van der Kolk is a Boston-based Dutch-American psychiatrist, author, researcher and educator.

Peter Attia is a Canadian-American author and former researcher known for his work in longevity medicine.

Christopher McDougall is an American author and journalist.