Which of the following is a psychological response to stress?

Negative emotions are a significant psychological response to stress. When individuals experience stress, their emotional state can be profoundly affected, leading to feelings such as anxiety, anger, frustration, or sadness. These emotions arise as part of the body's natural response to perceived threats or challenges, commonly referred to as the fight-or-flight response.

While the other options describe physiological reactions to stress, they do not represent psychological aspects. Increased blood sugar production, localized inflammation, and increased metabolism are all physical responses triggered by stress, aimed at preparing the body to deal with challenges. However, they do not capture the subjective, emotional experience that defines a psychological response. Understanding these emotional responses is crucial in the context of design, as they can influence how people interact with their environment and how spaces may be perceived or used during stressful times.