Health Promotion and Behavior Change

Health promotion and behaviour change is the cross-cutting topic that supplies the theory and methods underpinning chronic-disease prevention. It concerns how people are enabled to adopt and sustain healthier behaviours such as not smoking, eating well, and being physically active, and how interventions are designed to support that change at both individual and population levels.

Definition

Health promotion and behaviour change is the application of behavioural theory and intervention methods to enable individuals and populations to adopt and maintain behaviours that protect and improve health.

Scope

This topic introduces the main theories of health behaviour and behaviour change and the frameworks used to design interventions, situating them as the methodological foundation for cardiovascular, diabetes, cancer, and respiratory prevention. It is a reference entry on theory and intervention design and does not provide individual behavioural prescriptions or counselling scripts.

Core questions

• What psychological and social factors determine health behaviour?
• How do people move from intention to sustained behaviour change?
• How are behaviour-change interventions systematically designed?
• How does individual behaviour change relate to the wider determinants of health?

Key concepts

• Self-efficacy
• Stages of change (readiness)
• Capability, opportunity, and motivation
• Behaviour change techniques
• Health promotion as enabling control over health
• Settings and population approaches
• Determinants of health behaviour

Key theories

Self-efficacy theory

Bandura proposed that a person's belief in their capability to perform a behaviour (self-efficacy) is a central determinant of whether they attempt, persist in, and sustain that behaviour, making it a key target of behaviour-change interventions.

Transtheoretical (stages of change) model

Prochaska and DiClemente described behaviour change as movement through stages from pre-contemplation to maintenance, implying that interventions should be matched to the person's readiness to change.

Mechanisms

Behaviour-change theory identifies the cognitive, emotional, and social factors that shape whether people adopt and maintain healthy behaviours. Bandura's self-efficacy theory holds that confidence in one's ability to perform a behaviour strongly influences effort and persistence, so building self-efficacy is a recurring intervention target. The transtheoretical model frames change as progression through stages of readiness, suggesting that the same advice will land differently depending on whether a person is contemplating change or already acting on it. More recent frameworks such as the Behaviour Change Wheel organize the determinants of behaviour into capability, opportunity, and motivation and link them to specific intervention functions, providing a systematic basis for designing interventions. The Ottawa Charter situates these individual mechanisms within a broader view of health promotion as enabling people and communities to increase control over the determinants of their health, combining personal skill-building with supportive environments and policy.

Clinical relevance

Behaviour-change methods underpin the lifestyle and prevention work that nurses deliver across chronic-disease programs, from smoking cessation to physical-activity and dietary support. This entry explains the theories and design frameworks behind such work as educational reference material; it does not provide individualized behavioural prescriptions or replace structured professional training.

History

Health-behaviour theory developed through the latter twentieth century, with Bandura's self-efficacy work (1977) and Prochaska and DiClemente's stages-of-change model (1983) becoming especially influential. The 1986 Ottawa Charter broadened health promotion beyond individual behaviour to encompass supportive environments and policy, and later frameworks such as the Behaviour Change Wheel offered systematic methods for designing interventions grounded in behavioural theory.

Debates

Individual behaviour change versus structural determinants

A long-standing tension concerns how far health improvement should rely on changing individual behaviour versus altering the social, economic, and environmental conditions that shape behaviour; most frameworks now argue both are needed.

Key figures

• Albert Bandura
• James O. Prochaska
• Carlo C. DiClemente
• Susan Michie

Seminal works

• bandura-1977
• prochaska-diclemente-1983
• who-ottawa-1986

Frequently asked questions

Why is behaviour change central to chronic-disease prevention?

Most major chronic diseases share modifiable behavioural risk factors such as tobacco use, poor diet, and physical inactivity, so methods that help people change those behaviours are the common foundation of prevention across diseases.

Is health promotion only about changing individual behaviour?

No. While individual behaviour change is important, frameworks such as the Ottawa Charter stress that health promotion also requires supportive environments and policies that make healthier choices easier.