Abstract
Globally, Indigenous populations experience health inequities due to structural inequality, marginalisation, and unequal access to health services. In Malaysia, Orang Asli communities are exposed to persistent infectious diseases, undernutrition, and non-communicable diseases (NCDs). 1 These challenges reflect not only the involvement of biomedical factors but also the social determinants of health, such as poverty, geographic isolation, and limited health care access. 1 The health outcomes in these communities cannot be fully explained at the individual level alone, as health is produced, experienced, and transmitted within families across generations. 2 To understand these interactions, a womb-to-tomb approach across maternal, child, adolescent, adult, and elderly stages offers a comprehensive framework. 3 This approach demonstrates how early-life exposures shape long-term health outcomes and how risks accumulate within households over time. 3 Presenting family health as the focus of analysis provides a more holistic lens for addressing Orang Asli health inequities. It reinforces the need for integrated, intergenerational strategies that recognise the family as both a site of vulnerability and a platform for intervention.
One of the most comprehensive efforts to produce population-level evidence on the health status of Orang Asli throughout Malaysia is the Orang Asli Health Survey (OAHS). Compared with small-scale studies that focus on specific diseases or Orang Asli subgroups, the OAHS applies a life-course perspective, using data on adults, women, and children within the same population framework. The survey assesses various health indicators measures, including infectious diseases such as tuberculosis, nutritional outcomes such as stunting and body mass index, and major NCDs including diabetes, hypertension, and hypercholesterolaemia. In addition, health risk behaviours, such as tobacco use, alcohol consumption, and betel quid chewing, alongside reproductive health and components related to health awareness and practices, are also documented. The integrated approach, connecting health issues across life stages and within households, is the main contribution of OAHS. It provides a more comprehensive understanding of how risks coexist and interact. The OAHS offers vital evidence to guide policies and initiatives aligned with the lived reality of Orang Asli communities by going beyond isolated data.
The life-course analysis of Orang Asli health identifies unique but related problems at different phases of life. Birth outcomes are strongly influenced in the early years by maternal health and nutrition as well as restricted access to prenatal care. High rates of stunting, inadequate vaccination coverage, and ongoing exposure to infectious illnesses such as amoebiasis characterise the childhood phase.1,4 These early setbacks frequently lead to long-term health and developmental deficits, such as impaired cognitive development and a higher risk of NCDs.5,6 Health risk behaviours become more significant during adolescence and adulthood. During these phases, there is a high prevalence of tobacco use, alcohol consumption, and betel quid chewing among Orang Asli, which contributes to the build-up of metabolic risks. 1 Due to a lack of screening and access to care, conditions such as diabetes, obesity, and hypertension are becoming more common but frequently go untreated. 7 These trends indicate the early initiation of the burden of chronic illness. Unmanaged NCDs, inadequate health literacy, and poor self-rated health exacerbate vulnerability in later adulthood and older age. A critical cross-cutting issue is double burden malnutrition (DBM) – a public health phenomenon in which undernutrition and overnutrition coexist within the same population, household, or even individual. 8 Taken together, these patterns illustrate an intergenerational cycle that spans generations and perpetuates poor health outcomes throughout life.
Within Orang Asli societies, health concerns are not isolated; rather, they are passed down through generations via interrelated biological, behavioural, and socioeconomic processes. 9 Biologically, low birth weight and later childhood stunting, which are associated with an elevated risk of NCDs in adulthood, 10 may result from maternal malnutrition and poor health during pregnancy. Behaviourally, unhealthy practices, such as tobacco use, alcohol consumption, and dietary patterns, are often shaped within the household environment. Children and adolescents are influenced by familial norms, leading to the intergenerational perpetuation of risk behaviours. At the same time, socioeconomic pathways further reinforce these patterns. 11 Chronic illness among adult family members can reduce household income, which contributes to food insecurity and limits access to health care, thereby negatively affecting child health and development. These overlapping pathways create compounded vulnerabilities within families, where the illness of one member affects caregiving capacity, economic stability, and overall household well-being. This highlights a critical insight: interventions targeting individuals alone are insufficient. A family-centred life-course approach is essential to effectively addressing the complex and interdependent nature of health inequities among Orang Asli populations.
A Womb-to-Tomb, Family-Centred Approach to Improving Orang Asli Health in Malaysia
Reducing the health burden among Orang Asli communities in Malaysia requires a comprehensive, culturally sensitive, and life-course approach that addresses health needs from pregnancy through older age. Long-standing disparities experienced by Orang Asli populations are shaped by interconnected social, economic, and environmental determinants, which accumulate across generations and are reinforced within families and communities. 1 A womb-to-tomb, family-centred framework therefore offers a practical and equitable pathway to reduce preventable disease, health inequities, and long-term health care costs.
Health interventions must begin with maternal nutrition, antenatal screening, and safe childbirth to reduce preventable maternal and neonatal morbidity. Ensuring early-childhood immunisation, nutrition support, and developmental monitoring further strengthens early-life trajectories, particularly in Orang Asli communities affected by food insecurity and geographical isolation. Strengthening parental health literacy during this period enhances caregivers’ capacity to recognise health risks, seek timely care, and adopt preventive practices that benefit the entire household.
Schools and learning centres serving Orang Asli children provide an important platform for culturally appropriate health promotion. School-based nutrition programmes have demonstrated effectiveness in addressing undernutrition and supporting healthy growth among indigenous children.12,13 Integrating health education within educational settings helps overcome structural barriers to service access while promoting consistent health messaging in familiar environments.
Protecting the next generation requires targeted interventions during adolescence, when health behaviours and vulnerabilities are established. Orang Asli adolescents face social marginalisation, educational disadvantage, and psychosocial stressors that increase the risk of poor mental health outcomes.14,15 Embedding mental health promotion, life skills education, and psychosocial support within schools and community settings can strengthen resilience and reduce long-term mental health burden.
Preventive education addressing tobacco use, alcohol consumption, and betel quid chewing is particularly relevant, given early initiation and social normalisation of these practices in some indigenous contexts. These behaviours are associated with addiction, NCDs, and oral cancer risk later in life.16,17 Engaging parents, caregivers, and community leaders ensures health messages are culturally aligned and reinforced beyond the classroom, reducing intergenerational transmission of unhealthy behaviours.
Undiagnosed communicable and non-communicable diseases remain prevalent among Orang Asli adults due to limited health care access and delayed diagnosis. Expanding community-based screening for tuberculosis, diabetes, hypertension, and hypercholesterolaemia is essential to reducing preventable morbidity and premature mortality.14,15 Mobile health teams and periodic village-level outreach programmes are particularly effective in overcoming transportation and accessibility barriers while supporting continuity of care.
Behaviour change interventions are most effective when designed around family systems rather than individuals alone. Health behaviours such as tobacco use, alcohol consumption, and dietary practices are often collectively shaped and reinforced within Orang Asli households. 14 Family-centred counselling, supported by peer or community champions, improves trust, cultural relevance, and long-term engagement. Evidence from rural and indigenous settings highlights the importance of targeting shared household norms to achieve sustained behaviour change. 15
In later life, chronic disease management, family-centred care, and accessible primary health care services are critical to maintaining functional independence and well-being. Regular follow-up, culturally respectful communication, and community-based support help older Orang Asli adults adhere to treatment and remain engaged with health services. Integrating care within family and community contexts aligns with Orang Asli social structures and reduces reliance on fragmented institutional care.
Strengthening Primary Health Care and Cultural Safety
Improving primary health care access is fundamental to addressing Orang Asli health inequities, particularly in remote and hard-to-reach areas. Strengthening mobile and outreach services reduces delays in diagnosis and treatment for both communicable and non-communicable diseases.18,19 Ensuring continuity of care through regular outreach visits and integration with fixed facilities improves long-term disease management and builds trust with communities. 20
Culturally safe care is equally important. Health care services that recognise Orang Asli beliefs, languages, and social structures demonstrate higher utilisation, adherence, and patient satisfaction. 19 Cultural competence among health care providers enhances respectful dialogue, reduces mistrust, and supports shared decision-making.
Community Ownership, Policy Integration, and Research Priorities
Sustainable health improvement depends on genuine community partnerships. Collaborating with Tok Batin, community leaders, and Orang Asli health volunteers strengthens local governance and cultural legitimacy while improving programme acceptance and effectiveness.3,21 Co-designing interventions with communities ensures responsiveness to local priorities and promotes long-term ownership.22,23
At the policy level, Orang Asli health must be embedded within national health equity and primary health care agendas. A multi-sectoral approach involving health, nutrition, education, and rural development is essential to address structural determinants such as poverty, food insecurity, and infrastructure gaps. 1 Coordinated, whole-of-government action is critical to sustaining gains across the life course.
Strengthening the Orang Asli evidence base also requires a shift from cross-sectional studies to longitudinal, life-course research. Such approaches better capture cumulative disadvantage, intergenerational processes, and the long-term impact of early-life exposures. Community-based participatory research further enhances ethical practice, cultural relevance, and translation of evidence into policy and practice. 22
Conclusions
Findings from the OAHS underscore the complex, intergenerational nature of disease burden within these communities. A womb-to-tomb, family-centred approach aligns with Orang Asli social structures and offers a culturally grounded strategy to reduce health inequities. Meaningful progress requires sustained investment, authentic community partnerships, culturally safe health care delivery, and integrated policies that strengthen families and the social conditions in which health is shaped and sustained.
Footnotes
AI Use Statement
ChatGPT (OpenAI) was used to assist with idea development, manuscript structuring, and language editing. All outputs were reviewed and validated by the authors, who take full responsibility for the final content.