Tense muscles and trembling hands are considered which type of reaction to stress?

Tense muscles and trembling hands are classified as physiological reactions to stress because they are related to the body's physical response to stressors. When an individual encounters a stressful situation, the body activates its fight-or-flight response, which includes physiological changes such as muscle tension and trembling. These responses are caused by the release of stress hormones, such as adrenaline, which prepare the body to respond to perceived threats.

In this context, physiological reactions encompass all physical aspects of stress responses, including increased heart rate, heightened muscle readiness, and other bodily changes that occur automatically in response to stress. This contrasts with emotional reactions, which pertain to feelings and emotional states; cognitive reactions, which involve thoughts and reasoning; and behavioral reactions, which are observable actions or changes in behavior someone might exhibit in response to stress.