What Is Healthy Aging? A Founder Perspective

Founder Perspective #001

Executive Summary

The question sounds deceptively simple: what does it mean to age well? Over the last decade, the scientific answer has shifted dramatically — away from the narrow idea of merely avoiding disease, and toward something richer and more personal. The World Health Organization now defines healthy aging as the process of developing and maintaining the functional ability that enables wellbeing in older age. That single sentence carries enormous implications, particularly for a country like India, where a demographic wave is building quietly beneath the surface of a still-young population. At Aura Vital, we believe that understanding this shift — honestly, with the evidence front and centre — is the starting point for everything we do.

What Is Healthy Aging? The Core Idea

For most of modern medicine’s history, aging was framed as a problem to be managed — a slow accumulation of diseases requiring diagnosis and treatment. That framing is now being challenged at the highest levels of global health science.

The WHO calls for aging science to move beyond disease-centric models into more holistic, person-centred approaches, aligned with its definition of healthy aging as “the process of developing and maintaining the functional ability that enables wellbeing in older age.” This is not semantics. It is a paradigm change.

In this model, healthy aging is considered not from the perspective of disease but based on an individual’s ability to be and do the things they value — understood to be determined by individual-level attributes, a person’s “intrinsic capacity,” as well as the environments they inhabit and the interaction between the individual and those environments.

Alongside this functional lens sits a second, equally important distinction: the gap between lifespan and healthspan. Lifespan typically refers to the total number of years an individual lives, while healthspan denotes the period of life spent in good health, free from chronic disease or disability. These are not the same thing, and the divergence between them is the central challenge of our era.

The tension between longer life and healthy life is increasingly measurable: a 2024 JAMA Network Open analysis of 183 WHO member states found that the global healthspan-lifespan gap had widened over two decades and reached 9.6 years. In plain terms, the average person worldwide now spends nearly a decade of their life in poor health before they die. Living longer has not automatically meant living better.

Why It Matters: The Biology Beneath the Numbers

Understanding why this gap exists requires a short visit to the biology of aging itself. Scientists have been mapping the molecular mechanisms that drive the aging process, and the picture has grown clearer — and more actionable — with each passing year.

The Hallmarks of Aging

A landmark framework, first proposed in 2013, identified nine molecular, cellular, and systemic hallmarks of aging: DNA instability, telomere attrition, epigenetic alterations, loss of proteostasis, deregulated nutrient-sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and altered intercellular communication. This was the first time science had a consolidated, testable map of what goes wrong inside cells as we age.

The science did not stop there. First introduced in 2013, the hallmarks framework consolidated emerging scientific insights into the mechanisms of aging and identified potential points of intervention; in 2023, the hallmarks were updated to incorporate a decade of advances in both basic and clinical aging research, with each hallmark corresponding to a specific molecular or cellular alteration, often measurable through established biomarkers, that collectively contribute to aging phenotypes and age-associated diseases.

What this means practically is that aging is not one thing — it is many interacting processes, and lifestyle, nutrition, and environment all have documented influence over several of them. Ongoing research seeks to determine the optimal stages for therapeutic intervention and to identify lifestyle factors that may delay or prevent the onset of premature aging.

Intrinsic Capacity: The Five Domains

The WHO’s practical framework for measuring healthy aging centres on intrinsic capacity — a composite of the physical and mental reserves a person carries into later life. These capacities are categorised into five domains: cognition, vitality, locomotion, psychological well-being, and sensory function. Think of these as five pillars. When all five are standing, a person can live independently and meaningfully. When one or more begin to erode, the quality of those later years declines — often before any specific disease diagnosis is made.

Vitality, in particular, has drawn increasing research attention. In the 2024 ICOPE report, vitality is reaffirmed as a critical domain of intrinsic capacity, typically assessed through indicators such as unintentional weight loss, fatigue, poor appetite, mobility, and grip strength. These are quiet, early warning signals — not dramatic symptoms, but gradual shifts that often go unaddressed until they compound.

The data on the value of preserving intrinsic capacity is striking. A study conducted with 941 older adults in Brazil, followed over 58 months, found that for each unit increase in the intrinsic capacity score, there was a 21% reduction in the risk of mortality. Functional reserve, it turns out, is among the most predictive measures of how long — and how well — a person will live.

The Decade of Healthy Aging

Between 2020 and 2050, the number of people aged 60 and older is expected to double to 2.1 billion, while those aged 80 and over are projected to triple, reaching 426 million. In response, the United Nations declared 2021–2030 the “Decade for Healthy Aging”, with the WHO leading global efforts to improve the lives of older people, their families, and their communities. This is the policy environment in which we now operate.

Implications for India

India is often cited as a young nation, and in many ways it still is. As of 2025, the median age in India had increased to 29.8 years. But that median conceals a fast-moving demographic reality that deserves serious attention.

India is aging rapidly. By 2050, older adults aged 60 and older are expected to make up nearly 20% of the population — roughly 320 million people. Between 2022 and 2050, the population aged 80 and above will grow 279 percent. That is not a distant future; it is a trajectory already in motion.

According to a recent PIB release, India is undergoing an accelerating demographic transition towards an ageing population, projected to reach 230 million by 2036, with India’s elderly population (60+) expected to rise from 100 million in 2011 to 230 million by 2036, forming 15% of the total population.

The Double Burden: Communicable and Non-Communicable Disease

What makes India’s situation uniquely complex is that the country must manage the health challenges of aging on top of an existing infectious disease burden. Developing countries like India grapple with significant challenges due to the double burden of communicable and non-communicable disease in older adults.

The NCD component of that burden is accelerating. India’s burden of non-communicable diseases is escalating. NCDs typically present in individuals aged 55 years or older in many developed countries, but their onset occurs in India a decade earlier, at 45 years of age — exacerbated by the issues of multiple chronic conditions and the fact many remain undiagnosed due to lack of awareness and insufficient health-care access.

The Nutrition Gap in India’s Aging Population

Underlying much of this NCD risk is a largely invisible nutritional deficit. The evidence from India is consistent and concerning. The National Nutrition Monitoring Bureau report revealed that a significant number of elderly individuals fail to meet recommended dietary allowances, leading to deficiencies in essential nutrients such as calcium, vitamin D, and vitamin B12 — deficiencies that contribute to bone fractures, cognitive decline, and other chronic conditions.

A study from the Srinivaspura Aging Neurosenescence and COGnition (SANSCOG) cohort, conducted by researchers at the Indian Institute of Science, Bangalore, put precise numbers to this. The study reported that 75.7% of older adults had low vitamin D levels, 39.1% had a vitamin D deficiency, 42.3% had a vitamin B12 deficiency, and 11.1% had a folic acid deficiency. These are not marginal findings — they represent the nutritional baseline from which healthy aging must be built in rural India.

These deficiencies are concerning given their potential negative consequences on cognition, immunity, and frailty in the aging population. All three of those outcomes map directly onto the intrinsic capacity domains the WHO asks us to protect.

The challenge runs broader still. National Nutrition Monitoring Bureau data indicate that several micronutrient intakes of 70% of India’s population are less than 50% of the recommended dietary allowance. When the nutritional baseline of the broader population is this low, the trajectory into older age starts from a deficit, not from neutral ground.

Starting Earlier Than We Think

One of the most important insights from both global science and India-specific data is that healthy aging is not a project you begin at 60. Healthy aging is the process of maintaining good physical, mental, and social health and well-being as we grow older — and it starts early on in life. The habits, nutritional status, and physical reserves built in middle age are the raw material from which the intrinsic capacity of later life is drawn.

This reframing matters enormously for how we, as a society, think about wellness investment. A 45-year-old paying attention to bone density, micronutrient adequacy, muscle mass, and cognitive habits is not being dramatic. They are doing precisely what the science recommends.

What This Means for How We Think About Wellness

The convergence of these findings — the WHO’s functional ability framework, the hallmarks of aging, the healthspan-lifespan gap, and India’s specific nutritional and demographic profile — points toward a few clear principles that should inform how the wellness category evolves.

• Function over appearance. The goal is preserving what the body and mind can do, not simply how they look. Grip strength, mobility, cognitive sharpness, and emotional resilience are the real metrics of aging well.
• Prevention has a compounding advantage. Micronutrient adequacy maintained consistently over years yields dividends that no intervention introduced at the point of clinical deficiency can fully replicate.
• India needs India-specific solutions. The nutritional deficiency profile of the Indian aging population — particularly around vitamin D, B12, and calcium — is not identical to that of Western populations. Formulations designed for Western markets, applied wholesale here, may miss what matters most.
• The window is open now. India’s elderly population is growing fastest among those aged 80 and above. The opportunity to intervene meaningfully — at the level of nutrition, habit, and support systems — is concentrated in the next decade.

Aura Vital Perspective

At Aura Vital, healthy aging is not a marketing concept — it is the scientific and human question that orients every formulation decision we make. The evidence points clearly toward function-first thinking, sustained nutritional adequacy, and consistency over intensity. We believe in building products that are grounded in this evidence, manufactured to a standard that respects it, and paired with the kind of honest education that lets individuals make genuinely informed choices. You can explore how we approach this at auravital.in.

Sources

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