Stress, according to Jeffrey W. Forman, The Personal Stress Reduction Program , is the body's physical, mental and chemical reaction to circumstances that frighten, excite, confuse, challenge, surprise, anger, endanger or irritate. There are two different types of stress, eustress, and distress. Eustress is a good stress, it is brought on by good events such as getting married, becoming a parent or getting a job promotion.
Some people are at different levels of stress.
There are a number of reasons one may feel stressed and that is because of a stressor. A stressor is what causes stress. It can be a thought, emotion, situation, activity, behavior or a chemical. The General Adaptation Syndrome, or GAS, is a long term stress effect. It has three stages.