Health Psychology Stress and Stressors

Stress: An Overview

Stress: Basic Concepts

  • Definition of Stress:

    • Stress is defined as the process by which individuals perceive and respond to events that are perceived as harmful, threatening, or challenging.

  • Stressor:

    • A stressor is any event or situation that triggers coping adjustments in an individual.

    • Stressors can have both positive and negative effects on individuals.

Biopsychosocial Approach to Stress

  • The biopsychosocial approach emphasizes that stress is influenced by a combination of biological, psychological, and sociocultural factors:

    • Biological Processes:

      • Individual physiology plays a significant role in stress response.

      • Variations in sex hormones can affect how stress is experienced and managed.

    • Psychological Influences:

      • Psychological factors shape individual appraisals of challenges.

      • The appraisal process is affected by personality traits and past life experiences.

    • Sociocultural Factors:

      • Various sociocultural elements can influence how individuals respond to stress from multiple sources, highlighting the diversity of stress experiences.

Stressors

Significant Life Events

  • Holmes and Rahe's Contribution:

    • Holmes and Rahe pioneered the understanding of significant life events in relation to health by interviewing over 5000 people to identify events that change lives.

    • They assigned life change units (LCUs) to different life events, reflecting their impact on health.

    • Developed the Social Readjustment Rating Scale (SRRS), which quantifies life events according to LCUs.

  • Link Between Stress and Illness:

    • The SRRS represents the first systematic effort to connect stress with illness.

    • Higher LCUs are correlated with an increased likelihood of illness in the months following significant life events.

Critique of SRRS and Other Stress Scales

  • The SRRS and similar scales have certain limitations:

    • Many items in the SRRS are considered vague, subjective, and open to interpretation.

    • The method of assigning points does not account for individual differences in stress perception and response.

    • All scores are aggregated without distinguishing between resolved and unresolved stressful events.

    • There is evidence suggesting that these scales tend to underestimate stress levels experienced by African Americans and other minority groups, leading to questions about their validity and applicability in diverse populations.