What is the definition of stress in psychological terms?

In psychological terms, stress is defined as a combination of both psychological and physical responses to perceived challenges or threats. This definition emphasizes that stress is not purely a mental state; it encompasses a range of reactions that include emotional and physiological responses. When an individual perceives a situation as threatening or challenging, the body may activate the stress response, which can lead to a cascade of hormonal changes and physical reactions such as increased heart rate, heightened alertness, or other bodily changes that prepare an individual to confront or avoid the threat.

This understanding of stress reflects the interplay between mind and body, acknowledging that both mental processes and physical reactions are involved. By recognizing stress as this multifaceted phenomenon, it becomes clear that it can arise from both internal perceptions and external circumstances, influencing overall health and well-being. This definition also underlines the importance of coping mechanisms, as individuals may respond differently to stressors based on their perceptions and available resources.