Does this mean dementia is becoming more common or getting worse?

It means Australians are living longer. Dementia risk rises steeply with age, and fewer people now die of conditions that once cut lives short before dementia could develop — particularly heart disease, which is at its lowest death rate since 1968. Age-standardised rates, which account for population ageing, have been falling gradually as better cardiovascular risk management delays onset.

What can I do now to reduce my own dementia risk?

Population trends reflect a demographic shift, not a sudden increase in individual risk. Modifiable risk factors — cardiovascular risk, hearing loss, depression, social isolation, physical inactivity, and poor sleep — account for an estimated 40% of dementia cases. Your GP is the right starting point for a conversation about your specific risk profile.

Dementia now causes one in 10 Australian deaths — what it means

The numbers came out this week and they crossed a threshold no single condition had crossed before. Dementia caused more than 19,000 deaths in Australia in 2025 — more than one in 10 of the 188,421 deaths registered that year. The Australian Bureau of Statistics says it is the first time any condition has made up more than 10% of all deaths in a year.

If you have ever sat with someone who was disappearing — a mother who stopped recognising faces, a partner who asked the same question five times in ten minutes — this data point will mean something different to you than it does to a health policy planner. The numbers are about a population. The experience is always about a specific person.

What the ABS data actually shows

Dementia, including Alzheimer’s disease, has been the leading cause of death for Australian women for a decade. It became the overall leading cause of death in 2024. The 10% threshold in 2025 marks the latest step in a trajectory that has been building for years.

To understand why it crossed 10%, you have to understand what moved beneath it. Ischaemic heart disease — Australia’s leading cause of death for decades — accounted for about 8% of deaths in 2025. The number of deaths from heart disease is the lowest since 1968. The long-term decline in cardiovascular mortality, driven by better risk factor management, medications, and earlier intervention, has been one of modern medicine’s real achievements.

The people who used to die of heart attacks in their 60s are now living into their 80s — and then developing dementia. The median age at death in 2025 was 81.9 years. More than two-thirds of all deaths were among people aged 75 or older. Dementia is, in part, what happens to an ageing population that has solved some of the diseases that previously claimed it earlier.

This does not make it less devastating. It does change how we frame it.

A separate story in the same data

Two findings in the ABS release deserve separate attention.

Suicides among Aboriginal and Torres Strait Islander people reached 320 in 2025 — the highest figure in the ABS series, with the increase largest among Indigenous women. Overall male suicide was at its lowest since 2016, so the headline data suggests progress. That aggregate number conceals a deepening crisis for a specific group.

Drug-induced deaths rose from 2,007 in 2024 to 2,063 in 2025. Deaths involving stimulants rose from 504 in 2021 to 779 in 2025 — a 55% increase over four years. That is not a small or stable trend.

The ABS data is a single release covering a lot of ground. The dementia crossing gets the headline. These other numbers are there for anyone who looks.

The carer story that is not in the data

The 19,000 deaths are one part of the dementia story. The larger part is the estimated 400,000 Australians living with dementia today and the roughly 1.5 million Australians providing informal care to someone with it.

Dementia is a condition that takes a long time to end a life and takes a great deal from everyone around the person while it does. Dementia Australia estimates the average carer provides 47 hours of care per week. Carer burnout, anxiety, depression, and social isolation are well-documented and consistently under-resourced.

GPs see this on both sides: the person with dementia, and the person managing them. A patient who presents with unexplained exhaustion and disrupted sleep is sometimes a carer who has not named that yet. Asking directly — “Are you looking after someone at home?” — often opens a conversation that wasn’t going to open any other way.

Both-and: what the numbers mean and what they don’t fix

The mortality data is a record of a kind of success. Australians are living longer, dying later, and dying of diseases of old age rather than diseases that once claimed them far earlier. That is genuinely worth acknowledging.

The same data is also a record of a system under pressure it was not designed for. More people with dementia means more specialist appointments that don’t exist, more aged care placements with long wait times, more carers invisible to the primary healthcare system, and more GPs managing cognitive and behavioural complexity without adequate support.

The RACGP has called for dedicated dementia funding, specialist workforce investment, and better support for GPs managing dementia in general practice. The national Dementia Action Plan exists. The gap between the plan and the resourcing is visible.

2 cents: what is in your hands this week

If you have a patient showing early signs of cognitive change — family concern, navigational slips, recent functional decline — document it, date it, and use it. The GPCOG (General Practitioner assessment of Cognition) takes six minutes and gives you a structured baseline. A GPMP can coordinate allied health input early, which is when it matters most.

If you have a carer in your practice managing a family member’s dementia: name it, ask about their own health, and consider a carer health check. Many carers do not identify themselves as carers and do not know support exists.

Dementia Australia’s national support line is 1800 100 500. It is for people living with dementia and their families. It is staffed, not automated, and available seven days a week.

The 10% threshold is a number. What it represents is a large cohort of Australians — patients, families, and carers — who need a system that is ready for them.

Verdict: yes — the scale of the demographic shift is now documented, and the gap between what the system was built for and what it now faces is real.