We all live with stress each day. But how do you -react to daily stress? For some people, stress in life causes them to become angry, bad-tempered, or unable to concentrate on tasks. Others have trouble falling asleep or waking early in the morning with racing thoughts. 36
Simply stated, stress describes the many demands and pressures that we all experience,to some degree, each day. 37 The word “stress” includes both the stressful situation, and the symptoms you experience under stress.
The problem with stress is that it makes your nervous system start workking, releasing stress hormones (荷尔蒙)throughout your body. 38 It also causes other change in the body such as the “fight or flight” response.
The “fight or flight” response makes your heart beat faster. You might feel very nervous, making it difficult to breathe. In the short term, the “fight or flight” response causes changes that allow you to handle sudden stressful e1'^nts. When you face fear, the resulting hormonal changes supercharge your body to a state of high excitement. This prepares you for action. 39 When stress hormones stay higher than normal over time, there is a gradual and steady stream of harmful changes to the body. Long-term stress can stop the immune system from working effectively, which may lead to the development of diseases.
40 Positive stressors may include an upcoming wedding, the holidays, or pregnancy. On the other hand, negative stress results in the full-blown stress response. If continuous, negative stress can lead to loss of productivity, health problems, and tiredness.