The Code, cardiopulmonary arrest and resuscitation, is emblematic of the greatest challenge and most stressful situation for nurses and other members of the health care team. Stress and sub-optimal outcomes are rarely the result of motivation or technical skills. It is a lack of training and experience with mental toughness or psychological performance skills that degrade performance at these times. The Code Calm Mindset gathers information on these essential psychological and consolidates them for nurses and nursing students to help maximize their confidence at such critical times. The information here is applicable to all medical emergencies, aspects of nursing care, and nurses' personal lives.