Stress has been characterized in a number of forms over the years. It was first considered as environmental pressure, then as a strain within the individual. Today's most generally accepted meaning refers to the relationship between the circumstance and the individual. When the resources of a person are inadequate to cope with the demands and pressures of a situation, it is psychologically and physically affected by burnout. As a consequence, conflict is more probable in some situations than in others. Individuals and organizations alike will suffer from stress, which can make it difficult to achieve their objectives. People's behaviour, especially changes in behaviour, may reveal signs of stress.