Roger J. Klingenberg is an author who has written about reptile care. He co-authored *The Box Turtle Manual* (2012) with Philippe de Vosjoli, contributing a chapter on diseases and disorders covering topics such as dehydration, nutritional problems, parasitic problems, and vitamin deficiency. He has also contributed writing to *Reptiles Magazine*.

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..

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

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).

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