Stress is not a mood disorder, such as anxiety or depression. Stress is our psychological and physiological reactions to change. We all get stressed. It’s a nonspecific response of the body to any demand placed on it. While some of us thrive in stressful environments, stress can literally kill others. The key to a long, healthy life is to understand stress, learn how to manage it, and turn it into your source of energy—the spice of life.