Health, Stress, and Coping: Foundations of Health Psychology

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Health Psychology and Psychoneuroimmunology

Introduction to Health Psychology

Health psychology explores the interplay between psychological processes and physical health, emphasizing how mental states, emotions, and behaviors influence well-being and illness.

Psychoneuroimmunology: The scientific study of how psychological factors, the nervous system, and the immune system interact.
Historically, disease was viewed as purely biological, but research shows stress and emotions significantly impact immunity and health.
Positive emotions and adequate sleep are linked to improved immune function.

Stress: Definitions, Models, and Appraisal

Understanding Stress

Stress is the psychological and physiological response to events perceived as threatening or challenging. Individual perception plays a crucial role in determining what is stressful.

Stress: People's response to events that threaten or challenge them; highly subjective and dependent on personal appraisal.
Events are stressful when perceived as threatening and when resources to cope are lacking.

Lazarus and Folkman’s Transactional Stress Model

This model emphasizes the subjective nature of stress, focusing on how individuals appraise and cope with stressors.

Primary Appraisal: Assessing the significance of an event ("Is this important to me? Is it a threat?").
Secondary Appraisal: Evaluating available resources and options for coping ("Can I handle this?").

Example: A surprise test may be stressful for one student but not for another, depending on their appraisal and perceived resources.

Types and Sources of Stressors

Categorizing Stressors

Cataclysmic Events: Sudden, powerful stressors affecting many people (e.g., natural disasters, pandemics).
Personal Stressors: Major life events with significant but often temporary impact (e.g., bereavement, job loss, marriage).
Background Stressors: Daily hassles and minor irritations that can accumulate and have long-term effects (e.g., traffic, waiting in lines).

Post-Traumatic Stress Disorder (PTSD)

Results from exposure to major catastrophes or severe personal stressors.
Symptoms include flashbacks, emotional numbing, sleep disturbances, interpersonal difficulties, substance use, and increased suicide risk.
PTSD can be triggered by seemingly innocuous stimuli and is linked to feelings of helplessness.

Personal Stressors: Subcategories

Life Changes: Measured by tools like the Social Readjustment Rating Scale (Holmes-Rahe Life Stress Inventory).
Internal Conflicts: Experiencing incompatible motivations or choices.
Frustration: When a valued goal is blocked.
Pressure: Discrepancy between demands and available resources.

Holmes-Rahe Life Stress Inventory

Assigns numerical values to 43 major life events.
Higher scores are positively correlated with increased risk of physical and mental health issues.

Stress, Technology, and Mental Health

Technology and Stress

Increased screen time is associated with higher rates of mental health issues among teens (Twenge et al., 2018).
Reducing screen time improves stress, depressive symptoms, sleep quality, and well-being.
Physical inactivity and poor sleep patterns are contributing factors.

Physiological Responses to Stress

The Science of Stress

Stress triggers the release of adrenaline and cortisol from the adrenal glands.
Short-term (acute) stress prepares the body for "fight or flight" (increased heart rate, blood pressure, rapid breathing).
Long-term (chronic) stress impairs immune function, increases risk of illness, and damages cardiovascular health.

Stress and the Immune System

The immune system defends against infection and cancer but is weakened by chronic stress.
Lymphocytes (white blood cells) are suppressed by stress hormones, reducing the body's ability to fight illness.

General Adaptation Syndrome (GAS)

Hans Selye's model describes the body's response to prolonged stress in three stages:

Alarm: Initial reaction, mobilizing resources.
Resistance: Body attempts to cope with the stressor.
Exhaustion: Resources are depleted, leading to increased vulnerability to illness.

Critiques: Biological responses may vary by stressor and individual appraisal.

Consequences of Stress

Direct and Indirect Effects

Direct physiological effects (e.g., increased blood pressure, weakened immune system).
Indirect effects via unhealthy behaviors (e.g., substance use, poor sleep).
Psychological disorders (e.g., headaches, fatigue, stomach problems) can result from chronic stress.

Coronary Heart Disease and Personality Types

Type	Characteristics	Health Impact
Type A	Hostile, competitive, time-urgent, driven	Higher risk of heart disease, especially due to hostility
Type B	Cooperative, patient, non-competitive	Lower risk of heart disease
Type D	Distressed, insecure, anxious, negative outlook	Increased risk of cardiovascular problems

Hostility is particularly linked to increased physiological arousal and heart disease risk.

Transactional Model of Hostility

Hostile behaviors provoke defensive responses in others, reinforcing a cycle of hostility and stress.

Psychological Aspects of Illness

Cancer and Emotional Responses

Cancer is the second leading cause of death; emotional responses can affect coping and quality of life.
Adopting a "fighting spirit" improves coping but does not necessarily increase survival rates.
Therapies targeting emotional well-being may extend life in some cases.

Coping with Stress

Coping Strategies

Emotion-Focused Coping: Managing emotional responses to stress (e.g., deep breathing, talking to friends).
Problem-Focused Coping: Addressing the source of stress directly (e.g., seeking help, making a plan).

Situation	Emotion-Focused Coping	Problem-Focused Coping
Low grade on test	Talk to a friend, watch a show, reframe the situation	Ask for help, study more, review mistakes

Building Resilience and Hardiness

Resilience: The ability to bounce back from adversity; linked to optimism and confidence in coping.
Hardiness: Personality trait with three components:
- Commitment: Engagement and curiosity about life.
- Control: Belief in one's ability to influence events.
- Challenge: Viewing change as an opportunity for growth.

Sense of Control and Locus of Control

Perceived Control: Belief in one's ability to influence outcomes; associated with better health and lower stress.
Locus of Control:
- Internal: Belief that outcomes are determined by one's actions (more motivated, better coping).
- External: Belief that outcomes are due to luck, fate, or others (more likely to feel powerless).

Learned Helplessness

Occurs when individuals believe they cannot change a negative situation, leading to passivity and depression.
Classic study: Dogs exposed to unavoidable shocks later failed to escape even when possible (Seligman & Maier, 1967).
Learned helplessness has been applied to understanding depression and controversial interrogation techniques.

Compensatory Control

Psychological strategies to restore a sense of order when personal control is threatened, especially in response to random events.

Social Support

Being part of a social network provides emotional, informational, and practical support, which buffers against stress.
Expressive writing about trauma (Pennebaker studies) improves immune function and reduces health visits.
Confiding in others relieves physiological stress associated with inhibition and rumination.

Unhealthy (Maladaptive) Coping Strategies

Avoidance, substance use, excessive screen time, and social withdrawal are maladaptive and can worsen stress.
Doomscrolling: Compulsive consumption of negative news online, driven by evolutionary bias, FoMO, and variable-reward feedback loops; increases rumination and distress.

Positive Coping and Health Behaviors

Exercise

Increases dopamine, epinephrine, and brain-derived neurotrophic factor (BDNF), supporting brain health and cognitive function.
Regular exercise lowers risk of Alzheimer's and dementia.

Meditation

Reduces stress hormones and inflammation, improves sleep, and enhances memory and attention.

Uplifts

Small positive experiences ("uplifts") protect mental health and improve mood.

The Power of Prayer

Some studies suggest prayer may have health benefits, even when recipients are unaware.
Examples: Increased pregnancy rates, reduced complications after surgery in prayer groups.

Summary Table: Key Concepts in Health Psychology

Concept	Definition	Example/Application
Stress	Response to perceived threats or challenges	Exam anxiety, financial worries
Appraisal	Evaluation of event's significance and coping resources	Primary and secondary appraisal
Resilience	Ability to recover from adversity	Optimism after setbacks
Hardiness	Personality trait reducing stress impact	Commitment, control, challenge
Locus of Control	Belief about control over outcomes	Internal vs. external explanations for events
Learned Helplessness	Passive resignation after repeated failure	Depression, giving up on change
Social Support	Resources from social networks	Friends, family, expressive writing

Additional info: Academic context and examples have been expanded for clarity and completeness. Tables have been reconstructed to summarize key comparisons and classifications.