An ageing population: healthy ageing, opportunities and challenges

Four trends, all long-running and all well established. None requires a current figure.

• The proportion of Australians in older age groups is rising, and the fastest growth is in the oldest groups — the very old are the fastest-growing segment of all, which matters because care needs rise steeply with age.
• Two causes, not one. Life expectancy has risen, and the fertility rate has fallen below the replacement level. Ageing is as much about fewer births as about longer lives, and strategies aimed only at older people miss half the mechanism.
• Years lived are rising faster than years lived in good health. The gap between the two — time spent living with disease or disability — has been widening, which is exactly the trend healthy ageing policy exists to reverse.
• Ageing is uneven across Australia. Regional and rural areas are ageing faster than capital cities, as young people move for work and study and older people move for lifestyle. So the places with the oldest populations are often the places with the thinnest services.

The last point is the one most answers miss. Population ageing is not spread evenly, so a national average understates the pressure in exactly the communities least equipped to absorb it.

One caution on the dependency ratio. It counts people by age, not by what they do. It treats every person over a threshold as dependent and every person under it as productive, which is false in both directions: many older people work, care for grandchildren and volunteer, and many people of working age are studying, unemployed or caring full-time. Use it as a signal about direction, and say what it cannot see.

Healthy ageing is defined by functional ability, not by the absence of disease. It is the process of developing and maintaining the ability to do the things a person has reason to value: to move around, to meet their own needs, to learn and decide, to build and keep relationships, and to contribute.

That definition does real work, and three consequences follow from it.

• A person with several chronic conditions can be ageing healthily, if those conditions are managed and their functional ability is maintained. Health at this age is not a diagnosis count.
• The environment is part of the definition. Functional ability is a property of the person and their surroundings. The same person is more able in a suburb with footpaths, seating, transport and accessible shops than in one without. That makes the built environment a health intervention.
• The target is compression of morbidity. Adding years to life without adding years of good health does not achieve healthy ageing; the aim is to push the onset of disability later, so that the period of poor health is shorter even as life is longer.

What supports it, in order of how early it acts:

• Across the whole life course. Physical activity, nutrition, not smoking, education and financial security in earlier decades determine most of the functional ability available later. Healthy ageing is largely decided before old age begins.
• Maintained physical activity, particularly strength and balance. The single most effective intervention for maintaining independence and preventing falls.
• Social connection. Isolation and loneliness are associated with worse physical and cognitive outcomes, and are among the more modifiable factors at this age.
• Cognitive and social engagement, and purpose. Work, volunteering, caring and learning all sustain function.
• Age-friendly environments. Housing, transport, urban design and access to services.
• Coordinated healthcare. Managing several conditions together, reviewing medicines, and treating a new symptom as a new symptom rather than as ageing.

The syllabus lists opportunities before challenges, and the order is not accidental. An answer that treats ageing purely as a burden has failed the sub-point, and it has also failed to notice that the same demographic change produces both.

The challenges are real, and almost every one is a challenge of design rather than of demography. The number of older people is not the problem; a system, a housing stock and a workforce built for a different age structure is.

Group them by where they act, which is the structure that earns marks in an evaluation.

• Prevention across the life course. Physical activity and strength programs, nutrition, tobacco and alcohol policy, and management of blood pressure, cholesterol and glucose from midlife. Slowest to show results and largest in effect, because functional ability at eighty is mostly determined decades earlier.
• Maintaining function directly. Strength and balance programs, falls prevention, vision and hearing checks, oral health, and medication review. Falls prevention is the highest-value single intervention available, because one fall can end independence permanently.
• Age-friendly environments. Accessible housing standards, footpaths and seating, transport, and services within reach. These convert the same level of physical capacity into a higher level of functional ability.
• Care design. Support for ageing in place, coordinated care across providers, home and community care rather than defaulting to residential care, and dementia-specific support for people and their carers.
• Workforce and technology. Growing and retaining the aged care and health workforce; telehealth and monitoring to extend reach; assistive technology to maintain independence. Technology extends a workforce; it does not replace one.
• Social participation. Programs against isolation, support for volunteering and continued employment, and confronting ageism in services and in hiring.

Where future strategy has to go beyond current practice: from managing decline to preventing it. Most current spending sits at the care end, and most of the available gain sits at the prevention and function-maintenance end. Shifting that mix is the single change with the largest long-run effect — and it is hard precisely because the cost is immediate and the benefit is twenty years away.

The final sub-point asks what agencies must consider to address the future needs of a growing and ageing population. Both words matter: the population is getting larger as well as older, so demand rises on two axes at once.

• Where the demand will be, not just how much. Ageing is geographically uneven, so planning from a national projection puts capacity in the wrong places.
• The workforce pipeline. Training takes years and the shortage arrives on a known schedule. Workforce is the binding constraint on almost every strategy in the previous card, and it cannot be fixed at short notice.
• The funding mix and who bears the cost. How much is publicly funded, how much is met out of pocket, and what happens to people who cannot pay. An arrangement that relies on private contribution reproduces the socioeconomic gradient in old age, when accumulated disadvantage is at its largest.
• Prevention against care in the spending mix, and the political problem that prevention's benefits appear beyond the term of the government that funds it.
• Integration between systems. Health, aged care, disability support and housing are separately funded and separately administered, and older people fall between them. Fixing the gaps between systems is often worth more than improving any one of them.
• Equity within the older population. Older people are not a uniform group: outcomes differ by socioeconomic position, remoteness, cultural background, disability and gender, and women live longer with lower lifetime savings.
• Involving older people in design. The same principle that applies to every group in this module: services designed with the people who use them are used more and work better.

For non-government agencies specifically: they deliver a large share of aged and community care and much of the volunteer and social-connection infrastructure, they are funded on contracts that are often short, and their planning horizon is therefore shorter than the problem. That mismatch is worth naming in an answer.

Each of these is usually written up as a challenge. For each, give the challenge in one line and the opportunity in one line.

A regional council's population is ageing faster than the national average, its young people are leaving for work, and its nearest hospital is ninety minutes away. It has modest funding and can act in three areas.

Choose three actions from different boxes in the diagram. For each, state what it would change, how long before that change would show, and what it would not fix. Then name the one constraint that limits all three, and say what the council would have to ask the state or federal government for.