Understanding Stress at the Workplace: Definitions and Key Concepts

Every day, millions of workers experience tension, pressure, and mental strain on the job. These feelings are not just passing discomfort-they represent a critical occupational health issue that affects both individual well-being and organizational performance. Understanding stress at the workplace begins with clarifying what stress actually is, how it was scientifically defined, and why certain workplace conditions create psychological hazards that demand attention from employers and safety professionals alike.

What is stress?
The dual nature of stress: Eustress and distress
Hans Selye’s pioneering work on stress
The general adaptation syndrome
Workplace stress and psychosocial hazards
The ILO definition of psychosocial hazards
Categories of psychosocial risks
Understanding the interaction of work factors
The role of perception and individual differences
Recognizing work-related stress

What is stress?

Stress can be defined as a state of worry or mental tension caused by a difficult situation. It represents a natural human response that prompts us to address challenges and threats in our lives. While everyone experiences stress to some degree, the way we respond to it makes a significant difference to our overall well-being.

Stress affects both the mind and the body. A small amount of stress can be beneficial and help us perform daily activities, but too much stress can cause physical and mental health problems. This recognition that stress can have both positive and negative effects is fundamental to understanding its role in the workplace.

The dual nature of stress: Eustress and distress

Not all stress is harmful. Research distinguishes between two primary types of stress responses. Eustress refers to positive stress that motivates and energizes individuals. Eustress describes a type of stress that is positive, helpful, and motivating, encouraging people to work hard, improve their performance, and reach their goals. This type of stress arises when facing challenges that feel manageable and within one’s capabilities. Examples include preparing for an important presentation, starting a new project, or working toward a meaningful deadline.

Distress, on the other hand, represents negative stress that overwhelms a person’s ability to cope. Distress tends to negatively impact mood, health, and functioning, occurring when individuals believe a stressor exceeds their abilities to cope. In workplace settings, distress can lead to anxiety, burnout, decreased performance, and various physical health problems. The key difference between eustress and distress often depends on individual perception, available resources, and the sense of control one has over the situation.

Hans Selye’s pioneering work on stress

The scientific understanding of stress owes much to the groundbreaking research of Hungarian-Canadian endocrinologist Hans Selye. Modern biological formulations of stress can be traced back to a brief article written by Hans Selye in 1936. His landmark publication in the journal Nature introduced the concept that would revolutionize how we understand the body’s response to challenging circumstances.

Selye’s experiments involved exposing laboratory rats to various harmful stimuli. Autopsy of stressed rats revealed three major changes: enlargement of the adrenals, atrophy of the thymus and lymph nodes, and hemorrhagic gastric erosions and ulcers. This pattern, which Selye observed consistently regardless of the type of stressor applied, led him to propose the concept of a general adaptation syndrome.

The general adaptation syndrome

Selye identified that the stress response unfolds in three distinct stages. The syndrome evolves in three successive stages: initially the alarm reaction during which defense forces are mobilized, then the stage of resistance which reflects complete adaptation to the stressor, and finally the stage of exhaustion characterized by depression of organic functions. This three-phase model helped explain how prolonged exposure to stressors could eventually lead to physical and mental breakdown, even when the body initially adapts successfully.

Eustress is a psychological concept introduced by Hans Selye in the 1970s as part of his broader theory of stress. By distinguishing between beneficial and harmful stress, Selye provided a framework for understanding why some workplace pressures can enhance performance while others prove destructive. His research established that stress itself is not inherently negative-rather, it is the nature, duration, and perception of stressors that determine their impact on health.

Workplace stress and psychosocial hazards

Building on Selye’s foundational work, researchers and international organizations have developed specific frameworks for understanding stress in occupational settings. The International Labour Organization has played a crucial role in defining and addressing workplace stress as a global concern.

The ILO definition of psychosocial hazards

According to the ILO definition from 1986, psychosocial factors at work refer to interactions between and among work environment, job content, work organization and workers’ capacities, needs, culture, and personal extra-job considerations that may, through perceptions and experience, influence health, work performance and job satisfaction. This comprehensive definition recognizes that workplace stress does not arise from a single source but from complex interactions between multiple factors.

Anything in the design or management of work that increases the risk of work-related stress can be understood as a psychosocial hazard. These hazards are not limited to obviously dangerous working conditions. Instead, they encompass a wide range of organizational, interpersonal, and job-related factors that can affect worker well-being when they interact negatively with individual characteristics and circumstances.

Categories of psychosocial risks

Psychosocial risks in the workplace can be grouped into several key categories. These include factors related to job content such as monotony or lack of variety, workload and work pace including time pressure and deadlines, working time arrangements such as shift work or inflexible schedules, and lack of control over job design and tasks. Additionally, career development concerns, role ambiguity or conflict within the organization, poor interpersonal relationships, and organizational culture all contribute to the psychosocial risk profile of a workplace.

While stress itself does not constitute a physical or psychological injury, a stress response includes the physical, mental and emotional reactions that occur when a worker perceives that the demands of work exceed their ability or resources to cope. If prolonged or severe, work-related stress can cause both psychological and physical injuries, making prevention through risk assessment and control measures essential.

Understanding the interaction of work factors

The ILO framework emphasizes that psychosocial hazards emerge from interactions rather than isolated factors. The work environment includes physical conditions, equipment, and workplace layout. Job content encompasses the tasks themselves, their variety, complexity, and meaning. Organizational conditions involve management practices, communication patterns, and organizational culture. These workplace factors interact with individual worker characteristics including their capacities, skills, experience, needs, expectations, and personal circumstances outside of work.

This interaction can prove to be hazardous to employee health through their perceptions and experience. When the demands placed on workers exceed their perceived resources and abilities to cope, stress responses are triggered. Conversely, when there is good alignment between job demands and worker capabilities, and when workers have adequate support and control, work can promote a sense of mastery and contribute positively to well-being.

The role of perception and individual differences

An important aspect of workplace stress is that identical working conditions can produce different responses in different individuals. Personal factors such as coping skills, past experiences, personality traits, and support systems influence how workers perceive and respond to potential stressors. This explains why some employees thrive under conditions that others find overwhelming. However, this variability does not diminish employer responsibility for managing psychosocial hazards-the focus should remain on improving working conditions rather than solely trying to increase individual resilience.

Work-related stress manifests through various signs and symptoms. Workers experiencing stress may have difficulty concentrating, feel anxious or irritable, experience physical symptoms like headaches or stomach problems, and have trouble sleeping. Chronic workplace stress can worsen pre-existing health conditions and increase the risk of cardiovascular disease, mental health disorders, and musculoskeletal problems. Organizations may observe increased absenteeism, higher turnover rates, decreased productivity, and more workplace conflicts as indicators of elevated stress levels among employees.

Addressing workplace stress requires a systematic approach that begins with identifying psychosocial hazards through risk assessment, implementing preventive measures at the organizational level, and providing adequate resources and support to workers. The emphasis should be on eliminating or controlling hazards at their source through improved work organization and design, rather than relying solely on individual stress management training, though such programs can be a valuable complement to organizational interventions.

What do you think? How well does your workplace identify and address psychosocial hazards? What changes in work organization or design could reduce stress levels in your job or industry?

References

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Table of Contents

What is stress? 🔗

The dual nature of stress: Eustress and distress 🔗

Hans Selye’s pioneering work on stress 🔗

The general adaptation syndrome 🔗

Workplace stress and psychosocial hazards 🔗

The ILO definition of psychosocial hazards 🔗

Categories of psychosocial risks 🔗

Understanding the interaction of work factors 🔗

The role of perception and individual differences 🔗

Recognizing work-related stress 🔗