| Term | Definition |
| Burnout | State of emotional and physical exhaustion, lowered productivity, and feelings of isolation, often caused by work-related pressures |
| Stress | A nonspecific, emotional response to real or imagined challenges or threats; a result of a cognitive appraisal by the individual |
| Stressor | An environmental stimulus that affects an organism in physically or psychologically injurious ways, usually producing anxiety, tension, and physiological arousal |
| Posttraumatic stress disorder (PTSD) | Psychological disorder that may become evident after a person has undergone extreme stress caused by some type of disaster; common symptoms include vivid, intrusive recollections or reexperiences of the traumatic event and occasional lapses of normal consciousness |
| Type A behavior | Behavior pattern characterized by competitiveness, impatience, hostility, and constant efforts to do more in less time |
| Type B behavior | Behavior pattern exhibited by people who are calmer, more patient, and less hurried than Type A individuals |
| Psychoneuroimmunology | An interdisciplinary area of study that includes behavioral, neurological, and immune factors and their relationship to the development of disease |
| Coping | Process by which a person takes some action to manage, master, tolerate, or reduce environmental or internal demands that cause or might cause stress and that tax the individual's inner resources |
| Resilience | The extent to which people are flexible and respond adaptively to external or internal demands |
| Health psychology | Subfield concerned with the use of psychological ideas and principles to enhance health, prevent illness, diagnose and treat disease, and improve rehabilitation |
| Selye's General Adaptation Syndrome | three-stage process which describes the body's reaction to stress: 1) alarm reaction, 2) resistance, 3) exahaustion |