About dementia

Dementia describes impairments in cognitive function (thinking abilities) and changes in emotions and behaviour caused by brain disease. The cognitive impairments interfere with the person's daily activities and progressively get worse. There are many types of dementia, with Alzheimer's disease being the most common.

280,000 Australians have dementia. This number is growing rapidly with the ageing of the population. By 2050, almost 1 million Australians will have dementia unless we do something about preventing it now.

Alzheimer’s Australia is the national peak body providing support and advocacy for Australians living with dementia. Our vision is for a society committed to the prevention of dementia, while valuing and supporting people living with dementia. Hence, we developed the Your Brain Matters program to promote brain health and dementia risk reduction to the Australian community.

We hope that by motivating people to take steps to reduce their dementia risk, we can decrease the number of people developing dementia in the future.

The following pages explain what dementia is, what puts people at risk of developing dementia, and how Alzheimer's Australia can help.

What is dementia? – what it means to have dementia and the different types of dementia

Who gets dementia? – what puts people at risk

Can dementia be prevented? – what we have learned about possible prevention and risk reduction

About Alzheimer's Australia – Alzheimer’s Australia’s services and how to contact your local organisation.

Call the National Dementia Helpline on 1800 100 500 for questions, information, advice.


Your Brain Matters was supported by funding from the Australian Government under the Chronic Disease Prevention and Service Improvement Fund from July 2012 to June 2015.



Dementia Australia would like to acknowledge the Aboriginal people as the traditional custodians and carers of the country of Australia.