India's increasing life expectancy, a testament to medical advancements and better access to care, is now accompanied by a growing concern for cognitive health as the population ages rapidly, with nearly one in five Indians expected to be over 60 by 2050. Dementia is identified as a major looming health challenge, with an estimated nine million Indians currently affected and projections indicating over 11 million by 2050, significantly impacting individuals, families, and care systems. Crucially, research suggests that approximately 40% of dementia risk is linked to modifiable lifestyle factors such as hypertension, diabetes, obesity, physical inactivity, poor sleep, and social isolation, highlighting the importance of early, midlife interventions in promoting long-term cognitive well-being, which necessitates a societal shift towards prioritizing quality of life and integrated, preventive healthcare models.

India's increasing life expectancy, a testament to medical advancements and better access to care, is now accompanied by a growing concern for cognitive health as the population ages rapidly, with nearly one in five Indians expected to be over 60 by 2050. Dementia is identified as a major looming health challenge, with an estimated nine million Indians currently affected and projections indicating over 11 million by 2050, significantly impacting individuals, families, and care systems. Crucially, research suggests that approximately 40% of dementia risk is linked to modifiable lifestyle factors such as hypertension, diabetes, obesity, physical inactivity, poor sleep, and social isolation, highlighting the importance of early, midlife interventions in promoting long-term cognitive well-being, which necessitates a societal shift towards prioritizing quality of life and integrated, preventive healthcare models.

India's increasing life expectancy, a testament to medical advancements and better access to care, is now accompanied by a growing concern for cognitive health as the population ages rapidly, with nearly one in five Indians expected to be over 60 by 2050. Dementia is identified as a major looming health challenge, with an estimated nine million Indians currently affected and projections indicating over 11 million by 2050, significantly impacting individuals, families, and care systems. Crucially, research suggests that approximately 40% of dementia risk is linked to modifiable lifestyle factors such as hypertension, diabetes, obesity, physical inactivity, poor sleep, and social isolation, highlighting the importance of early, midlife interventions in promoting long-term cognitive well-being, which necessitates a societal shift towards prioritizing quality of life and integrated, preventive healthcare models.

India is living longer. It is a remarkable outcome shaped by decades of progress in medicine, wider access to care, and a growing consciousness around health. Life expectancy has more than doubled over the past six decades. Yet, progress often brings with it a more complex question. The years being added to life are not always matched by the quality with which those years are lived.

At the centre of this shift lies cognitive health, an area that has remained relatively underemphasised in public discourse. India is ageing at a pace it has not experienced before. By 2050, nearly one in five Indians will be over the age of 60—amounting to more than 300 million people. This demographic transition will reshape not just health care systems, but families, communities, and the meaning of independence in later life.

Alongside this, dementia is emerging as one of the most significant health challenges of our time. Nearly nine million Indians are estimated to be living with dementia today. Over the next three decades, this number is expected to more than double, with projections suggesting it could exceed 11 million by 2050. These figures, while striking, only begin to capture the depth of the issue. Dementia does not simply affect memory. It alters identity, reshapes relationships, and gradually erodes independence.

The national conversation on non-communicable diseases has largely centred around heart disease, diabetes, and cancer. These are conditions that are visible, measurable, and widely understood. The brain, however, has remained at the margins. Cognitive decline often unfolds quietly; early signs are dismissed as a natural part of ageing. Yet, science presents a different perspective.

A growing body of evidence indicates that nearly 40 per cent of dementia risk is linked to modifiable factors. These include hypertension, diabetes, obesity, physical inactivity, poor sleep, and social isolation. This shifts the narrative in a meaningful way. It moves the conversation away from inevitability and towards prevention. The implications are significant. The most powerful interventions do not begin in later years. They begin much earlier, often in midlife. The choices individuals make in their 30s, 40s, and 50s around movement, nutrition, rest, and emotional wellbeing quietly shape cognitive outcomes decades later.

As longevity increases, the burden of chronic conditions rises alongside it. Dementia, in particular, places a unique strain on families. Care is often long-term and deeply personal, with loved ones becoming primary caregivers. The emotional and physical toll is considerable, and the economic implications are equally profound. In many ways, dementia is not just a medical condition. It is a societal challenge that calls for a more integrated response.

A collective imperative, therefore, is that health care systems must evolve in response to this reality. The focus needs to extend beyond episodic treatment to continuous and preventive care. Geriatric services, home-based care, and long-term disease management will become increasingly important. At the same time, cognitive health must be integrated into routine clinical practice rather than treated as a specialised concern.

At Apollo, this approach is already taking shape through a greater emphasis on preventive health, early screening, and comprehensive elder care models. The intent is to move beyond treating illness to sustaining wellbeing, enabling individuals to live with independence, dignity, and clarity for as long as possible.

There is also a broader shift that must occur at a societal level. The measure of progress must therefore evolve. It is no longer sufficient to count the number of years added to life. Extending life is an achievement worth celebrating, yet ensuring that these added years are lived with awareness, independence, and dignity is the responsibility that now lies ahead. Perhaps, the answer lies in the world’s Blue Zones, where longevity is sustained by everyday habits and strong social bonds, reminding us that it is not how long we live but how well we preserve the mind and meaning of those years.

Dr Preetha Reddy is Executive Vice Chairperson of Apollo Hospitals Enterprise Limited.

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