Health education: The missing lesson in our schools’ curriculum

Teacher delivering health education as part of the school curriculum.

Health education: The missing lesson in our schools’ curriculum

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In Asia, health issues like obesity, diabetes, and mental health disorders are on the rise, particularly among young people. Despite this, comprehensive health education is often lacking or inconsistently integrated into school curricula. While core subjects like mathematics and science are prioritised, students often lack the knowledge and skills necessary to manage their health effectively. This gap in education is concerning, especially as the prevalence of conditions like obesity —whose rates have tripled globally between 1975 and 2022, with notable increases in countries like China and India—continues to grow. Mental health challenges, including anxiety and depression, are also rising, exacerbated by academic pressures and societal expectations.

The absence of proper health education means that many young people may not be fully equipped to make informed health decisions, which may lead to long-term effects on both their wellbeing and public health outcomes. Addressing these issues through integrated health education can provide students with the tools they need to make healthier choices, reducing the risk of chronic conditions later in life.

The role of health education in empowering youth

Health education should do more than just imparting facts; it must actively encourage behaviour change. By teaching students to make healthier choices and adopt positive habits, health education can help lay the foundation for improved long-term health outcomes. Here’s why this approach is so vital:

Physical health and movement
Physical health and movement

Physical education (PE) plays an important role in introducing students to various physical activities, which can encourage the development of healthier habits. By providing the tools and opportunities for physical activity, PE can potentially help reduce the risk of conditions like obesity and heart disease, while also supporting overall wellbeing. While not all students may continue these activities long-term, early exposure to enjoyable sports or movement can help foster a positive attitude toward an active lifestyle.

Expert tip
EXPERT TIP

According to Susan, President of Society of Behavioural Health Singapore, to combat sedentary lifestyles, health education programs should be redesigned to incorporate applied learning and competency-based education. Raising awareness alone is no longer enough; true behaviour change requires emotive, experiential, and contextualised learning. Drawing from the works of David Kolb, Donald Schön, and John Dewey, Susan emphasises that learning is most effective when students engage in real-life applications.

Schools can reduce sedentary behaviour by designing lessons that discourage prolonged sitting, even in theory-based health classes. Grading should reflect both conceptual understanding and the application of health behaviours, such as meeting national physical activity guidelines. Physical activity should also be integrated into daily routines, not just limited to isolated physical education periods.

Deci and Ryan’s Self-Determination Theory suggests that long-term motivation is driven by:

  • Autonomy: Students should have a say in the type and timing of physical activities.
  • Competence: Students must be equipped with the necessary skills.
  • Relatedness: Students should feel supported by peers and mentors.

This requires schools to rethink policies, schedules, and even classroom layouts. Could students be allowed to stand or walk during lessons without disrupting class?

To reduce chronic disease risks, schools should adopt a Lifestyle Medicine framework, integrating physical education and health education into a holistic wellness system. The six pillars of lifestyle medicine, including healthy nutrition, physical activity, stress management, restorative sleep, positive social relationships, and substance abuse prevention, should be taught as interconnected factors that impact overall health.

In summary, to foster lasting behaviour change, schools are encouraged to:

  • Redesign health education with experiential learning
  • Use role modelling from educators and leaders
  • Foster autonomy and competence in students' activity choices
  • Create environments that normalise movement and healthy eating
  • Integrate lifestyle medicine into the curriculum

By doing so—healthy living becomes an empowered, natural part of a young person’s life, laying the foundation for better long-term health.

Mental health and proactive coping strategies
Mental health and proactive coping strategies

Mental health education is essential for helping students identify early signs of anxiety, depression, and stress. By teaching techniques like mindfulness, deep breathing, meditation, and time management, schools can equip students with effective coping strategies to manage stress and emotional challenges. These skills not only help students address mental health concerns early but also empower them to prioritise emotional wellbeing, preventing more severe issues from escalating.

Nutrition and healthy eating
Nutrition and healthy eating

Health education can provide students with the knowledge to make informed dietary choices. By learning about the importance of balanced meals, portion control, and the potential risks of excessive sugar and processed foods, students can develop habits that support healthier lifestyles over time.

Preventive health care
Preventive health care

Teaching students about preventive health measures, such as regular check-ups, hygiene practices, and self-care, can help empower them to take a proactive approach to their health. In many instances, prevention may be more effective than treatment, and by incorporating these habits early, students may lower their risk of developing chronic conditions later in life.

Substance abuse prevention
Substance abuse prevention

Teaching students about the risks of smoking, alcohol, and drug use can help empower them to make healthier choices. By promoting healthy coping mechanisms, like stress management techniques and open communication, students may be better equipped to manage stress without resorting to substances.

Expert insight
EXPERT INSIGHT

Susan, with her extensive experience in health promotion, explains that the knowledge-action gap exists across all age groups. A powerful example of this is Ogilvy Thailand’s “Smoking Kid” campaign, which won a Bronze Lion at the 2012 Cannes Lions. The campaign involved a hidden-camera social experiment where children approached adult smokers asking for a light, only to confront them with the note: “You worry about me. But why not yourself?” The shock of the interaction led many smokers to reflect on their own choices, with calls to quit hotlines increasing by 40% shortly after the ad aired. This emotional resonance, rather than preaching, had a profound impact and went viral globally.

Ogilvy—applied this same principle in Singapore’s “I Quit” campaign, focusing on real-life stories of individuals who had successfully quit smoking. The campaign used personal narratives rather than just health statistics, invoking themes of family, identity, and transformation. It was integrated across multiple platforms, including TV commercials, MRT ads, community roadshows, and social media challenges, creating a social norm around quitting smoking. Participants were encouraged to take public pledges, and the multi-channel support system led to a significant response, with thousands pledging to quit.

This approach illustrates how emotionally compelling messaging can drive behavioural change far more effectively than knowledge alone. As Harvard Professor Gerald Zaltman argues, human decisions are largely driven by emotions, which influence attention, perception, and motivation. Successful campaigns inspire, rather than simply inform.

Susan highlights that to design health education that truly changes lives, inspiration must be at the core. Teachers must move beyond simply delivering knowledge and embody healthy behaviours themselves. According to Albert Bandura’s Social Cognitive Theory, behavioural change is strongly influenced by modelling, meaning teachers must model healthy living and communicate it with passion and conviction.

Health education must evolve from textbook-based lessons to carefully designed experiences that incorporate:

  • Appropriate emotionally compelling narratives
  • Identity-reinforcing messages
  • Experiential learning
  • Reflection and peer interaction

In this model, students are no longer just processors of information; they are individuals who connect with stories. Teachers become facilitators, guiding students to find meaning, purpose, and vision in adopting healthy behaviours.

Related: Is vaping fuelling a health crisis among youth in Asia Pacific?

Key health challenges and prevention strategies

Health education is essential for helping students understand the risk factors associated with common diseases and how to prevent them. Among the key health challenges students face are:

Obesity and Type 2 diabetes
Obesity and Type 2 diabetes

Health education can help students understand the risks associated with poor eating habits and a sedentary lifestyle. By learning about portion control, the importance of physical activity, and the potential dangers of processed foods, students can reduce their risk of obesity and related conditions like Type 2 diabetes.

Cardiovascular diseases
Cardiovascular diseases

Given that heart disease is one of the leading causes of death globally, it’s important for students to understand how lifestyle choices can impact heart health. Educating about the risks of smoking, poor diet, and physical inactivity may help empower students to make choices that support their cardiovascular health.

Mental health disorders
Mental health disorders

Teaching students how to manage stress, recognise signs of anxiety and depression, and seek help when needed can help reduce the stigma surrounding mental health. Early education and intervention may contribute to better mental health outcomes as students transition into adulthood.

Infectious diseases
Infectious diseases

Health education should include basic hygiene, the importance of vaccinations, and methods to prevent the spread of infectious diseases like the flu or COVID-19. Teaching these habits early can help foster a sense of responsibility for both personal and community health.

Sexually transmitted diseases (STIs) and sexual health
Sexually transmitted diseases (STIs) and sexual health

Students should gain a comprehensive understanding of sexual health, including how to prevent STIs, the importance of consent, and the principles of sex. This knowledge is vital in helping they make informed, responsible decisions about their sexual health.

Digital platforms and apps can complement traditional sex education by providing students a safe, private space to ask questions and learn. These platforms can offer interactive experiences and ensure access to accurate, age-appropriate information.

Expert insight
EXPERT INSIGHT

Early health education is crucial in laying the foundation for lifelong healthy habits. However, for it to be effective, it must go beyond theoretical learning. As Jean Piaget’s theory of constructivism suggests, children actively construct understanding through lived experiences, shaped by their cognitive development stages. Thus, health education must be developmentally appropriate, interactive, and relevant to their everyday lives.

Empowering students to adopt healthier habits requires more than just awareness of health risks. Sørensen et al.’s (2012) integrated model of health literacy highlights four key competencies:

  • Accessing health information
  • Understanding its meaning
  • Appraising and interpreting its relevance
  • Applying it to make decisions

Most health education programmes focus on knowledge and comprehension, neglecting the critical steps of appraisal and application, where real behaviour change begins.

Application, however, is never context-free. A student may understand healthy eating principles—like using “My Healthy Plate”—but if available food options at school or home conflict with this message, the student remains disempowered, despite their knowledge. Social determinants of health (SDOH), such as family norms, income, and parental habits, play a key role in whether a child can translate knowledge into action.

For instance, a student may learn to build a balanced salad bowl in class, but without access to affordable, available, and socially reinforced ingredients at home, the likelihood of adopting this behaviour is low. Health education must align with real-life environments to be impactful.

Therefore, effective early health education should:

  • Equip students with critical thinking and appraisal skills
  • Offer practical, low-barrier strategies for real-life application
  • Involve caregivers and families in reinforcing healthy habits
  • Address inequities in access to health-supportive resources

By doing so, early health education doesn’t just inform. It empowers, fostering the skills and confidence students need to make better health decisions into adolescence and adulthood.

Sleep: An essential health lesson often overlooked

Sleep: An essential health lesson often overlooked

Sleep is one of the most overlooked aspects of health education, yet it plays a critical role in overall wellbeing. Poor sleep can impair cognitive function, emotional regulation, and immune health, which may lead to difficulties in concentration, mood swings, and increased susceptibility to illness. Teaching students about the importance of sleep—along with strategies for sleep hygiene, such as establishing a consistent bedtime routine, limiting screen time before bed, and creating a restful environment—can encourage them to prioritise rest. By understanding the consequences of inadequate sleep, students may develop habits that improve focus, mood, and overall health, potentially contributing to better academic engagement and long-term wellbeing.

Related: Is vaping fuelling a health crisis among youth in Asia Pacific?

Expert insight
EXPERT INSIGHT

According to Susan, creating a supportive environment for sustainable behaviour change requires schools to extend health education beyond the classroom and into the community. This approach aligns with Singapore’s vision of becoming a “Blue Zone 3.0.” By embedding applied learning into real-life settings, schools can partner with:

  • Supermarkets for guided tours teaching food label literacy and smart grocery choices
  • Hawker centres for hands-on activities to assess healthier food options and portion sizes
  • Senior activity centres for intergenerational wellness projects

These collaborations reinforce knowledge and provide opportunities for students to advocate health within their families and communities. Imagine students co-creating healthier recipes with seniors or engaging in intergenerational sports challenges like badminton, table tennis, or pickleball, which strengthen both physical activity and social bonds across age groups.

Schools can also partner with healthcare institutions and rehabilitation centres to bring real-life stories into the learning experience. Reflecting on Susan’s time as a Quit Smoking Counsellor at the Health Promotion Board, she recalls a conversation with a 7-year-old about the harms of smoking. Today, we see rising youth vaping, which is at times met with leniency. But we must ask: Would the same leniency apply if these youths were caught with recreational drugs at age 21?

This is where narrative-based education can make a difference. Inviting rehabilitated former drug users, cancer survivors, or those affected by substance abuse to share their experiences can humanise the consequences of harmful behaviours. As Harvard professor Gerald Zaltman reminds us, humans are narrative thinkers, and we remember stories more than data points. These emotionally resonant accounts can challenge assumptions, provoke reflection, and inspire better choices.

To shift health behaviours, schools, community organisations, and healthcare systems must act as a unified ecosystem, reinforcing shared values, aligned messaging, and access to supportive environments. When students see healthy behaviours taught, lived, and supported across the places they learn, live, and play, they are more likely to adopt and sustain these habits into adulthood.

A healthier future starts in the classroom

As we confront the rise in lifestyle-related diseases, mental health challenges, and the increasing pressures on today’s youth, we have a pivotal opportunity to shape the future of public health. Equipping students with the knowledge and skills to manage their health is no longer optional —it’s an investment in the wellbeing of future generations. By fostering an understanding of physical and mental wellbeing, we can help empower young people to make informed decisions that will benefit their long-term health.

Health education is not a luxury; it’s a necessity for the future of our society. A call to policymakers: The time to act is now. The decisions made today will help shape the health of future generations. Health education is just as important as any subject in shaping the future of our society. Integrating it into the curriculum is not just an investment in young people’s wellbeing—it’s a critical step towards a healthier, more resilient society. By equipping today’s youth with the knowledge and skills to manage their health from an early age, we can address rising health challenges, reduce the long-term burden on healthcare systems, and foster a more productive society for the future.

Expert Contributor
EXPERT CONTRIBUTOR
Susan Tan
Founder & CEO, ECI Consulting Holdings Pte Ltd
President, Society of Behavioural Health Singapore
LinkedIn: Susan Tan

This article was produced by Healthful For You. The views and opinions expressed throughout are those of the authors and do not necessarily reflect those of the Expert Contributor. The Expert Contributor has provided input solely for the EXPERT INSIGHT and TIP segments, based on their professional expertise. These comments are intended to offer general guidance and may not apply to all individuals. Any interpretations or conclusions beyond that section are those of Healthful For You. This article is not a substitute for personalised medical advice, diagnosis, or treatment. Please consult your doctor or a healthcare professional regarding your specific health needs.

We hope you found this article informative. Healthful For You welcomes contributions from healthcare professionals, patients, and community members. If you have a story, research, or a perspective that can enrich our dialogue, please get in touch with us at [email protected].

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