The Willpower Instinct : Paperback : Avery Publishing Group : 9781583335086 : 1583335080 : 31 Dec 2013 : After years of watching her students struggling with their choices, health psychologist McGonigal realized that much of what people believe about willpower is actually sabotaging their success. Committed to sharing what the scientific community already knew about self-control, she created a course called The Science of Willpower which was an instant hit for Stanford University.