[简答题] Stress Stress is the body’’s reaction to any change that requires an adjustment or response. The body reacts to these changes with physical, mental, and emotional responses. Stress is a normal part of life. Many events that happen to you and around you—and many things that you do yourself—put stress on your body. You can experience stress from your environment, your body, and your thoughts. How does stress affect health The human body is designed to experience stress and react to it. Stress can be positive, keeping us alert and ready to avoid danger. Stress becomes negative when a person faces continuous challenges without relief or relaxation between challenges. As a result, the person becomes overworked, and stress-related tension builds. Stress that continues without relief can lead to a condition called distress—a negative stress reaction. Distress can disturb the body’’s internal balance or equilibrium—leading to physical s