Health Psychology and Behavioural Interventions
Why do people continue smoking when they know cigarettes cause cancer? Why do diabetic patients hide sweets from their families? Human health behavior is governed by subconscious beliefs, emotions, and psychological defense mechanisms. In this concluding unit, we examine the Health Belief Model, psychosomatic mind-body illnesses, CBT and Transtheoretical behavior change models, Psychological First Aid (PFA), and fighting mental health stigma.
In this topic, you will learn:
1. Health Belief Model (HBM) and Illness Behaviour
Health Belief Model (Defined in Simple Words):
The Health Belief Model (HBM) is defined as a psychological framework that explains and predicts whether a person will take action to prevent, screen for, or control illness based on their personal cognitive beliefs.
Simple Definition:
The Health Belief Model (HBM) is defined as a psychological framework that explains and predicts whether a person will take action to prevent, screen for, or control an illness based on their personal health perceptions.
Visual Diagram: The 6 Core Constructs of the Health Belief Model
How likely the patient thinks they are to catch or develop the disease: "My father had diabetes, so I am at very high risk."
How serious the patient believes the consequences will be: "Uncontrolled diabetes can cause blindness and kidney dialysis."
Belief that taking the medicine or diet will prevent the danger: "Taking Metformin daily keeps my kidneys safe."
The costs, side effects, or hassles: "The tablets cause loose motions and cost too much money every month."
External events that trigger the action: "Seeing a friend suffer a stroke," or an SMS reminder from the pharmacy.
The patient's personal confidence that they can succeed: "I believe I can walk 30 minutes every morning and quit sugar."
Illness Behaviour & The "Sick Role" (Talcolt Parsons):
Illness behaviour is defined as the way people monitor their bodily sensations, define and interpret symptoms, and use healthcare services.
When entering the official "Sick Role", patients are temporarily exempted from daily work obligations, but they have a reciprocal societal duty to seek competent medical help and cooperate with the treatment plan.
2. Psychosomatic Illnesses and the Mind-Body Connection
Simple Definition:
A Psychosomatic Illness is defined as a genuine physical disease whose onset, severity, or course is caused or significantly worsened by emotional stress, mental conflict, and psychological distress via the nervous and endocrine systems.
The HPA (Hypothalamic-Pituitary-Adrenal) Axis: Chronic mental anxiety causes the hypothalamus to release CRH → pituitary releases ACTH → adrenal glands pump out Cortisol and Adrenaline. High prolonged cortisol suppresses white blood cells (lowering immune resistance) and causes vasoconstriction (elevating blood pressure).
Emotional stress triggers excessive gastric acid secretion and hypermotility of the colon (Irritable Bowel Syndrome).
Emotional trauma and panic trigger acute bronchospasm and wheezing in asthmatic patients.
Chronic scalp muscle contraction and stress-triggered auto-inflammatory skin flares.
3. Behaviour Change Theories (CBT & TTM) in Treatment Adherence
Visual Diagram: The 6 Stages of Change in the Transtheoretical Model (TTM)
• Cognitive Behavioural Therapy (CBT) is defined as a goal-directed psychological therapy that identifies and modifies dysfunctional thought patterns and behaviors.
• It is also known as: Cognitive restructuring therapy.
• It is used for: Managing chronic pain catastrophizing, treatment-related needle phobias, and health anxiety.
• In this method, we: Examine the Cognitive Triangle showing how thoughts determine emotional feelings, which in turn drive behavioral decisions.
Cognitive Behavioural Therapy (CBT) & The Cognitive Triangle:
CBT is based on the principle that our Thoughts, Feelings, and Behaviors are constantly influencing each other in a bidirectional triangle:
Pharmacist CBT Intervention: Cognitive Restructuring—challenge the distorted belief: "Insulin is simply a natural protein your pancreas is tired of producing; giving it back protects your eyes and heart so you can enjoy your family for decades."
4. Psychological First Aid (PFA) and Crisis Communication
Simple Definition:
Psychological First Aid (PFA) is defined as a compassionate, supportive, and practical human response to a fellow human being who is suffering and may need immediate psychological support following a major crisis, disaster, or acute medical trauma.
The 3 Action Principles of Psychological First Aid (WHO Guidelines):
- Check for safety and immediate physical danger.
- Look for people with urgent basic needs (water, bleeding, shock).
- Identify people with severe distressed emotional reactions.
- Approach respectfully and introduce yourself.
- Listen attentively without forcing them to talk.
- Ask about their immediate needs and worries.
- Help them feel calm and safe.
- Help them address basic needs (food, medicines, shelter).
- Connect them with loved ones and social support.
- Provide clear, accurate factual information.
- Link them to medical and psychological emergency teams.
5. Mental Health Promotion and Stigma Reduction Through Strategic Communication
Simple Definition:
Mental Health Stigma is defined as the negative stereotyping, prejudice, and social discrimination directed against people suffering from psychiatric or psychological conditions.
Due to fear of being labeled "crazy" or "weak" by society, patients hide severe depression, bipolar illness, or suicidal thoughts for years until catastrophic self-harm happens. Many patients secretly stop taking antidepressant or antiepileptic medicines because family members criticize them.
- Normalize Psychiatric Medications: Explain that depression is a biochemical deficiency of serotonin in brain synapses, exactly like diabetes is a deficiency of insulin in the pancreas.
- Use Person-First Language: Say "a person living with schizophrenia" instead of labeling them "a schizophrenic".
- Provide Confidential Dispensing: Ensure complete privacy and discreet packaging when dispensing psychiatric drugs.