UNIT – 2
TYPES OF HEALTH PSYCHOLOGY
    1) CLINICAL HEALTH PSYCHOLOGY
   Clinical health psychology refers to the application of scientific knowledge
    to clinical questions that arise across the healthcare sector.
   This type of health psychology deals with the application of psychological
    knowledge and techniques to the treatment and management of physical
    health issues.
   Clinical health psychologists work directly with patients to help them cope
    with chronic illnesses, pain management, stress reduction, and adapt to
    medical conditions like diabetes or heart disease. They often provide
    therapy or counselling to help people make lifestyle changes (like quitting
    smoking or losing weight) and develop coping strategies.
   They often work in hospitals, clinics, and private practices alongside other
    healthcare professionals.
    2) PUBLIC HEALTH PSYCHOLOGY
   PHP is population-oriented. A major aim of PHP is to investigate potential
    causal links between psychosocial factors and health at the population
    level.
   Public health psychology emphasizes the role of psychological factors in
    health at the population level, aiming to promote health and prevent
    disease within communities.
   Public health psychologists work on designing and promoting health
    programs that can prevent diseases and promote healthy lifestyles in
    communities. They focus on large-scale interventions that promote
    healthy lifestyles, like campaigns to reduce smoking n improve nutrition,
    encourage vaccination n healthy eating habits
   They work in government agencies, non-profits, and academic
    institutions.
    3) COMMUNITY HEALTH PSYCHOLOGY
   Community health psychology investigates community factors that
    contribute to the health and well-being.
   This type looks at health within the context of the community,
    emphasizing the role of social systems and community resources in
    promoting health and preventing disease.
   Community health psychologists work on grassroots levels, engaging with
    communities to identify their specific health needs and develop programs
    that address specific needs, like reducing obesity n increasing access to
    mental health services. They improve access to healthcare, and build
    supportive environments for health improvement.
   They often work with community organizations, local government, and
    non-profits, focusing on empowerment and participatory approaches to
    health.
    4) CRITICAL HEALTH PSYCHOLOGY
   Critical health psychology prioritizes social justice and the universal right
    to good health for people of all races, genders, ages, and socioeconomic
    positions. A major concern is health inequality, and the critical health
    psychologist acts as an agent of change working to create equal access to
    healthcare.
   Critical health psychology critiques the traditional approaches to health
    and illness, questioning power dynamics, social justice, and the influence
    of socio-political factors on health.
   It emphasizes the need for more inclusive, equitable healthcare practices
    and addresses the ways in which social inequality, race, gender, and class
    impact health outcomes.
   Critical health psychologists work in academic settings, advocacy groups,
    and research institutions, often focusing on policy change and social
    justice issues related to health.
       MEDICAL MODEL OF HEALTH N ILLNESS
          The medical model Is also known as “Biomedical model”. The term
           ‘biomedical’ comes from the Greek word bios (meaning ‘life’) and the
           Latin word medicus (meaning ‘healing’).
          The term “biomedical” combines biology and medicine to understand and
           treat health related issues.
          The biomedical model explains ‘health’ as the absence of disease.
           According to this model, ‘disease’ is considered as any pathogen that
           causes a disturbance to the normal, or natural functioning of the body.
          It is the most dominant model used in western medicine by health care
           practitioners today.
          It focuses on identifying clear symptoms and using medical investigations
           (diagnostic tests) to find the root cause of the illness/disease. Based on
           these findings, medical interventions are used to bring the patient back to
           good health.
          The biological approach of the medical model focuses on a person’s
           genetics, neurotransmitters, neurophysiology, neuroanatomy, and other
           aspects of their physical makeup.
          The medical model of mental illness treats mental disorders like physical
           illnesses, such as a broken arm. It assumes that there is a physical or
           biological cause behind the mental health problem, like an imbalance in
           the neurotransmitter levels, and often treats it with medication or medical
           interventions.
       Some of its major characteristics:
 i.        Cause of disease - This model explains ‘health’ as the absence of
           disease. According to this model, diseases are always caused by
           something external like virus, bacteria or other body abnormalities and
           not related to a person’s emotions or mental state.
ii.        Responsibility for disease - People are not seen as responsible for
           their own illness. They are considered victims of external factors or
           internal issues.
iii.       Treatment - Treatment focuses only on the biological/physical aspect. It
           involves removal of pathogenic agents either through drugs or surgery.
         The objective of treatment is the removal of symptom and relief from
         any type of pain.
iv.      Techno-oriented Model - This model heavily relies on technology and
         machines for diagnosis and treatment. From making a generic drug to
         performing a surgery, everything requires technology.
v.       Practitioner-Physician relationship - This model considers that
         physicians possess all the required knowledge n expertise to treat
         patients. The patient plays a passive role and is seen more as a recipient
         of care.
      HEALTH – ILLNESS CONTINUUM MODEL
      The Health-Illness Continuum is a model that illustrates the dynamic, ever-
      changing state of health. It views health as a spectrum, from severe illness
      (premature death) to optimal wellness (high-level wellness)
      It is a graphic illustration of well – being , developed by Dr. John W. Travis in
      1972.
      The health continuum shows patients the path to a better, healthier lifestyle.
      The far left end of the continuum, in the treatment paradigm, is premature
      death. As patients move to the right, they reach the neutral point, leaving
      the treatment paradigm solely in the wellness paradigm. Finally, at the far
      right of the continuum is high-level wellness.
      One of the health continuum benefits is that it is visual tool patients can use
      to see and plan their journey to better health. It is a roadmap leading to a
      healthier lifestyle and optimal health wherever a patient begins.
      The core of this model Is individuals’ ability to move towards better health
      and well-being whenever they don’t have visible illnesses. It is essential,
      however, to work on one’s mental health and awareness, educate oneself,
      and stimulate self-growth.
      The Individual’s state of health is one of continual change. He moves back
      and forth from health to illness and back to health again, his condition is
      rarely constant. He may wake up feeling great, develop a headache mid-
      morning, and feel fine again by noon.
      The health-illness continuum illustrates this process of change, in which the
      individual experiences various states of health and illness, ranging from
      extremely good health to death that fluctuate throughout his life.
STAGES OF HEALTH ILLNESS CONTINUUM
1. Pre-Mature Death (Extreme Illness) - The far left of the continuum,
   representing severe health deterioration and life-threatening conditions.
Example: A person in the final stages of cancer or a patient in a coma after a
traumatic injury.
2. Disability - This stage refers to a diminished quality of life due to long-
   term physical or mental impairment.
Example: A stroke survivor with partial paralysis who needs assistance with
daily activities or someone with severe mental health disorders like
schizophrenia affecting daily functioning.
3. Symptoms - Symptoms are signs of illness or disease that may not be
   disabling but indicate the presence of health issues.
Example: A person experiencing persistent headaches and nausea as early
signs of a migraine or stress-related issue.
4. Signs - Signs are objective, measurable indicators of illness, typically
   detected through medical examination or testing.
Example: A doctor detecting high cholesterol or elevated blood sugar during
routine tests, signalling the onset of heart disease or diabetes.
5. Neutral Point - The midpoint of the continuum, representing neither
   illness nor particularly high wellness. The individual is in a state of
   balance but not actively pursuing higher levels of health.
Example: A person who feels fine and has no diagnosed medical conditions
but does not exercise or prioritize healthy eating.
6. Awareness - This stage involves recognizing unhealthy habits or
   potential risks to one’s health but not yet taking concrete action to
   improve it.
Example: A smoker becoming aware of the risks of lung cancer but not yet
quitting the habit.
7. Education - The individual seeks knowledge and learns more about
   health and well-being, preparing to take proactive steps to improve.
Example: A person researching online or attending a workshop on how to
manage stress or improve sleep quality.
     8. Growth - Growth involves the active application of learned health
        behaviours and an ongoing commitment to improving physical, mental,
        and emotional well-being.
     Example: A person regularly exercising, eating a balanced diet, and
     managing stress effectively to improve their overall health.
     9. High-Level Wellness - The far-right side of the continuum, representing
        optimal health, where the person feels vibrant and is functioning at their
        highest potential in all aspects of life.
     Example: A person who is physically fit, emotionally stable, socially
     connected, and intellectually stimulated, fully engaged in life with minimal
     health concerns.
     HIGH – LEVEL WELLNESS MODEL
        The High-Level Wellness Model was developed by Dr. Halbert Dunn in
         1959, emphasizes a holistic view of health that goes beyond the mere
         absence of disease and promotes a dynamic process of growth and
         personal development.
        Dr. Halbert L. Dunn’s High-Level Wellness Model is a pioneering
         framework in public health and preventive care. It redefines wellness,
         focusing not just on disease management but on optimizing well-being.
        Dunn’s model defines wellness as an active process of growth, balance,
         and improvement through which individuals become aware and make
         choices toward a more successful existence.
        He emphasized that people can achieve “High-Level Wellness” by making
         informed and conscious decisions about their physical, emotional,
         intellectual, social, and spiritual health.
        This model encourages individuals to maximize their potential in each
         area, leading to a higher quality of life and overall well-being.
     Key Concepts of Dunn’s High-Level Wellness Model:
i.       Wellness as a Process        -  Wellness is not a static state, but a
         continuous process of growth and adaptation. It requires ongoing effort to
           balance all aspects of life, including physical, emotional, mental, and
           social well-being.
ii.        Integration of Body, Mind, and Spirit -               Dunn emphasized that
           wellness is holistic, meaning it involves the integration of physical,
           mental, and spiritual health. These dimensions are interdependent, and
           optimal wellness requires balancing all of them.
iii.       Health as a Spectrum            -   Dunn viewed health as existing on a
           continuum, ranging from poor health (illness) to high-level wellness. High-
           level wellness is achieved when a person actively engages in behaviours
           that promote physical, emotional, and social well-being, regardless of any
           existing health conditions.
iv.        Personal Responsibility           -  Dunn highlighted the importance of
           individual responsibility in achieving high-level wellness. He believed that
           people must take an active role in maintaining and improving their health
           through lifestyle choices, such as regular exercise, a healthy diet, stress
           management, and social connections.
 v.        Maximizing Potential - High-level wellness involves striving to reach
           one’s fullest potential in all aspects of life, including personal fulfilment,
           career, relationships, and mental and emotional growth.
       HIGH - LEVEL WELLNESS GRID
       Dunn’s High-Level Wellness Grid is a dynamic interaction between an
       individual’s health and their environment.
          Health Axis (Vertical) : Represents the state of health (from illness to
           wellness).
          Environmental Axis (Horizontal) : Represents environmental factors (from
           unfavourable to favourable).
       Four Quadrants of Dunn’s Grid:
       Dunn’s model divides wellness into four quadrants, based on the interaction
       between the environment and an individual’s state of health:
 i.        High-level Wellness in a Favourable Environment: This represents
           the ideal state, where the individual enjoys good health and is in an
           environment that supports their wellness.
ii.        Emergent High-level Wellness in an Unfavourable Environment:
           The person is striving for wellness but is in a challenging or adverse
           environment that hinders their progress.
     iii.       Protected Poor Health in a Favourable Environment: The person
                has poor health, but a supportive environment helps them manage their
                condition.
     iv.        Poor Health in an Unfavourable Environment: The most challenging
                quadrant, where the individual is both in poor health and in an
                unsupportive or hostile environment.
            HEALTH BELIEF MODEL
               The Health Belief Model (HBM) is a social psychological health behaviour
                change model developed to help explain and predict health-related
                behaviours ( i.e. how individuals make decisions regarding their health
                behaviours ) by focusing on the attitudes and beliefs of individuals
               It was developed in the 1950s by socials psychologists at the U.S Public
                Health Services and remains one of the best known and most widely used
                theories in health behaviour research.
               This model focuses on what people believe about their health and what
                makes them decide to take action to stay healthy.
               The HBM suggests that people’s beliefs about health problems, perceived
                benefits of action and barriers to action, and self efficacy explain
                engagement or lack of engagement in health promoting behaviours.
               A stimulus, or cue to action must also be present in order to trigger the
                health promoting behaviour.
            CORE COMPONENTS OF HBM
            HBM suggests that these core components explain how people judge the risk
            of certain illnesses and how they view the effectiveness of treatments,
            ultimately shaping their decision to adopt health-promoting behaviours
            There are six core components of this model, the first four were the original
            principles and the last two were added as research on the model
            progressed / developed :
I.          Perceived Susceptibility – This refers to the individual’s belief about the
            likelihood of getting a particular health condition.
            If a person perceives that they are at risk of developing a particular health
            issue, they are more likely to engage in behaviours to reduce that risk. On
       the contrary, individuals who feel they are not at risk are less likely to take
       preventive measures.
       Example: A person who has a family history of heart disease might believe
       they are at higher risk, leading them to adopt preventive behaviours like
       exercising and healthy eating.
II.    Perceived Severity – This refers to the individual’s belief about the
       seriousness of the health condition and its consequences.
       If a person believes that a health problem is severe, they are more likely to
       take action. However, if they think the condition is mild or will not have
       serious consequences, they may not see the need for behaviour change.
       Example: A smoker who believes that lung cancer could lead to serious
       health issues or even death may be more motivated to quit smoking.
III.   Perceived Benefits        - This refers to an individual’s belief in the
       effectiveness of the advised action to reduce the risk or seriousness of the
       health condition.
       A person will not engage in health behaviour unless they also believe that
       taking action will reduce the threat. The perceived benefits can include both
       health-related outcomes (e.g., lowering blood pressure) and social or
       emotional benefits (e.g., feeling better about oneself).
       Example: A person may begin exercising because they believe it will reduce
       their risk of heart disease, or they might take medication because they
       believe it will control their diabetes.
IV.    Perceived Barriers - These are an individual’s assessment of the obstacles
       to behaviour change.
       A person will not take action if they perceive too many barriers. The fewer
       the perceived barriers, the more likely an individual will engage in health-
       promoting behaviours.
       Example: A person may know that eating healthy is beneficial, but if they
       think eating healthy is too expensive, they may avoid changing their diet and
       continue eating unhealthy / junk food.
V.    Cues to Action - These are factors that triggers an individual’s decision-
      making process to engage in health-promoting behaviours.
      Cues to action act as triggers that encourage people to make changes in
      their behaviour. Without these triggers, people might keep delaying or
      ignoring important changes to their health.
      Example: A person might decide to get a flu shot after hearing about an
      influenza outbreak on the news.
VI.   Self-Efficacy -  This is an individual’s belief in one’s own ability to
      successfully execute the behaviour required to produce the desired
      outcomes.
      Self-efficacy plays a crucial role in behaviour change. If people believe they
      are capable of performing a certain behaviour (e.g., exercising regularly or
      quitting smoking), they are more likely to take action. Conversely, a lack of
      confidence in one’s abilities can be a major barrier to behaviour change.
      Example: A person who feels confident that they can follow a weight loss
      program is more likely to succeed in doing so.
      PARADIGM OF HEALTH MODEL
      The Paradigm of Health Model, or Health Paradigm Model refers to
      conceptual frameworks that guide our understanding of health, disease, and
      well-being.
      Paradigms in health models can shape how health is defined, assessed, and
      managed.
      These models guide the focus of health professionals, policymakers, and
      individuals approach towards health promotion, disease prevention, and
      treatment. Over time, health models have evolved, influenced by changing
      societal, scientific, and cultural views.
      Key paradigms in health models:
      1.Biomedical Model
         Focuses on biological factors as the sole determinants of health.
         Defines health as the absence of disease.
         Relies on diagnosis, treatment, and medical technology to address illness.
2. Biopsychosocial Model
   Integrates biological, psychological, and social factors in understanding
    health and illness.
   Emphasizes patient-centered care and holistic treatment.
   Recognizes the interaction between mind, body, and environment.
3. Ecological Model
   Considers the interaction between individuals and their environments.
   Examines health at individual, interpersonal, community, and societal
    levels
   Highlights the role of social determinants of health, such as education,
    income, and housing.
4. Holistic Model
   Views health as a balance of physical, mental, emotional, social, and
    spiritual well-being.
   Incorporates complementary practices like meditation, yoga, and
    alternative medicine.
   Promotes self-care and a harmonious lifestyle.
Implications of the Model
a) Holistic Viewpoint: Recognizes that health is shaped by a combination
   of biological, psychological, social, and environmental factors, advocating
   for comprehensive care.
b) Health Promotion: Encourages proactive measures to maintain and
   enhance health, rather than focusing exclusively on treating diseases.
c) Collaborative Efforts: Highlights the need for partnerships between
   sectors such as healthcare, education, and environmental planning to
   tackle social determinants of health.
d) Patient-Centered Care: Advocates for health approaches tailored to
   individual preferences, needs, and values, making care more personalized
   and effective.