Stress is the body's reaction to circumstances that frighten, confuse, endanger or irritate us. Job stress arises from the interaction between people and their jobs, characterized by changes that cause abnormal functioning. Stress can be neutral, distressing if caused by undesirable outcomes, or eustress if from desirable outcomes. Stress results from constraints that prevent desires and demands involving loss of something desired. For stress to occur, there must be uncertainty over outcomes and importance of outcomes. Individual and organizational approaches can help manage stress, such as time management, social support, relaxation techniques, and wellness programs.