Re-Defining Stress to Prevent Disease examines the causes of stress and how thoughts, perceptions, and learned experiences contribute to disease and illness. Most people do not know how to live with stress. This lack of understanding causes the immune system to attack the body's organs, which in turn creates disease and illness at staggering rates. Stress cannot be eliminated; however it can be looked at differently, Re-Defined, to teach the brain how to handle a stressful event. In Jaffe's book, he educates the reader in a way that helps a person see stress positively, which in turn helps the immune system become stronger and fight off any pending illnesses and diseases.