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Brain health

Learn how to care for your brain and what to do if you are worried about any brain health changes you have noticed.
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What is brain health?

Your brain affects nearly everything you do. For example:

  • breathing
  • moving and maintaining balance
  • sleeping
  • thinking and learning
  • forming, storing and retrieving memories
  • speaking
  • seeing, hearing and feeling.

Brain health means the different parts of your brain work well. Brain health is important across all stages of life, and is an important part of looking after your overall health and wellbeing.

It’s good to know there are many things you can do to look after and improve your brain health.

What is normal for brain health and ageing?

As you get older, your brain changes too. From your 30s or 40s, you may think a little more slowly or notice small changes in memory. This is normal.

For most people, knowledge and life experience make up for these changes in brain function. This means your ability to work, run a household and enjoy social activities is usually not affected.

What is cognitive health?

Cognitive health is your ability to think, learn, understand, solve problems, plan, and interact with other people.

How does cognitive health change with age?

It’s normal for parts of your cognitive health to change as you get older. For example, you may find it harder to:

  • think as quickly as you used to
  • solve new problems
  • think of certain words
  • remember phone numbers, names and dates
  • multitask or switch attention.

With normal changes to your cognitive health, you should still be able to:

  • focus on a single task
  • recall old memories
  • use the same words as before
  • follow conversations and storylines
  • use your knowledge and skills to do activities (e.g. cook meals or pay the bills).

Learn more about cognitive health – video

Watch a video of Dr Marita Long from Dementia Australia and the Jean Hailes Brain Care Clinic talking about cognitive health and ways to protect your brain and memory.

Duration: 24 min

Learn more about cognitive health – podcast

Listen to Dr Marita Long from Dementia Australia and the Jean Hailes Brain Care Clinic talking about cognitive health and ways to protect your brain and memory.

Listen now

What is dementia?

Dementia is a general term used to describe changes in the brain that can affect memory, thinking, problem solving, behaviour and emotions. These changes usually happen slowly over time and begin to affect everyday activities.

Dementia can happen to anyone, but it’s much more common over the age of 65.

Dementia is not one specific disease. There are more than 100 different causes of dementia. The 4 most common causes of dementia are:

  • Alzheimer’s disease – caused by buildup of abnormal proteins in the brain
  • vascular dementia – caused by restricted blood flow to the brain
  • frontotemporal dementia – caused by damage to the front or side parts of the brain, or both
  • Lewy body dementias – include dementia with Lewy bodies (tiny tangled proteins) and Parkinson’s disease dementia.

 

Want health information in your language?

Facing Dementia Together has information on dementia in Simplified Chinese, Traditional Chinese, Arabic and Vietnamese.

Facing Dementia Together

What is younger onset dementia?

Any form of dementia that happens before the age of 65 is called younger onset dementia (early onset dementia).

Younger onset dementia is uncommon. It’s estimated that in 2024 about 30,000 people in Australia were living with this type of dementia.

Support needs for people diagnosed with younger onset dementia are different from those diagnosed later in life. For example, someone who is diagnosed at a time when they are still working and raising a family will need support in many parts of their life.

Download the Younger Onset Dementia Guide from the Dementia Australia website.

Is dementia a normal part of ageing?

Dementia is linked to ageing but it is not a normal part of ageing. There’s a lot you can do to look after your brain and reduce your risk of dementia.

What’s the difference between normal cognitive ageing and dementia?

Normal cognitive ageing is when your thought processing, analysis and problem-solving skills begin to change during adulthood and beyond. These changes don’t usually have a big impact on your daily life.

Dementia is when changes in your thinking and memory make it hard to manage everyday activities. It can cause:

  • personality changes
  • confusion
  • uncertainty about familiar environments
  • problems with language, reasoning and memory.

If you or someone you know starts having new problems with everyday tasks or remembering things that used to be easy, it’s important to talk to a doctor.

Learn more about the symptoms of dementia and what’s not dementia.

What is mild cognitive impairment?

Mild cognitive impairment means there are changes in your memory or thinking that are greater than what is expected for someone your age. These changes usually don’t affect day-to-day life, but complex tasks may feel more challenging.

Mild cognitive impairment is not a normal part of ageing. Most people with mild cognitive impairment do not go on to develop dementia, and some people improve and return to their usual level of brain health.

For a smaller number of people, mild cognitive impairment can be an early stage of dementia.

If you’re worried you have mild cognitive impairment, it’s important to see a doctor. They can help to work out what might be happening and what support you need.

The differences between midlife brain fog and younger onset dementia

What causes dementia?

There are many different causes of dementia, including Alzheimer’s disease and vascular dementia. But it’s good to know there are many things you can do to reduce your risk of dementia.

We know that for some types of dementia, such as Alzheimer’s disease, family history and genes can increase a person’s risk. But having a family history or a gene that increases your risk of dementia does not mean you will definitely get it.

Learn more about genes and dementia on the Dementia Australia website.

Is there a cure for dementia?

There is currently no cure for dementia, but support is available to help you live well with the condition.

Why does brain health matter for women?

Looking after your brain health is particularly important for women. About 2 in 3 people living with dementia in Australia are women.

Dementia is the leading cause of death and disability for women in Australia.

Why are women more likely to get dementia?

We don’t know exactly why more women than men get dementia.

One of the reasons why more women get Alzheimer’s disease (the most common type of dementia) is that women live longer than men, and age is the biggest known risk factor for dementia. But this is not the only reason.

Studies suggest that a combination of biological, social and life factors unique to women may explain the higher rates of Alzheimer’s disease in women. More research is needed to understand what these differences are and how they influence dementia.

Brain health and the gender gap

When it comes to brain health and dementia, women may be affected differently, but there are lots of gaps in knowledge.

Many clinical trials do not include enough women. This means we don’t have a good understanding of how dementia progresses in women and how effective treatments are.

In the past, research on dementia in women has also been underfunded. In 2019, only 12% of research funding into Alzheimer’s disease focused on women, despite more women having the disease.

More funding is now going into research that considers women-specific factors and how these influence dementia in women.

There’s also a gender gap when it comes to caring for people with dementia. Research shows that more than 3 in 4 primary carers of people with dementia are women.

Dementia symptoms

Dementia is different for everyone. Dementia symptoms come on gradually and worsen over time.

The symptoms often depend on the type of the dementia and which areas of the brain are affected.

Symptoms usually occur after the age of 65, but they can happen earlier.

We’ve listed the different dementia symptoms below.

If you’re experiencing any of these symptoms, you can:

Early signs of dementia

Early signs of dementia are different for everyone. They are often subtle and noticed by other people rather than the person experiencing them.

We’ve listed early signs of dementia below.

If you’re concerned about any of these changes, you can:

Tips and tools to help you talk to your doctor

When to see your doctor about dementia and cognitive changes

Talk to your doctor if you or someone else has noticed changes to your memory, mood or thinking, or you’re concerned about symptoms.

The changes may be a sign of dementia, but they could also be symptoms of something else.

It’s important to get checked and get the right diagnosis. The sooner you know what’s causing the changes, the sooner you can get the right treatment and support.

Talking to your doctor about dementia and cognitive changes

It’s important to find the right doctor to talk to about dementia and any changes to your cognitive health. If you don’t get the support you need, you can see a different doctor.

It can be hard to talk about changes in your memory, mood or thinking. If you feel uncomfortable or overwhelmed, it might help to:

  • take a family member or friend with you for support
  • write down your symptoms and discuss them during your appointment (download the symptom checklist on the Facing Dementia Together website)
  • bring a list of your medicines, including vitamins and supplements
  • write any questions you might have
  • bring a notepad and pen to write important information.

Remember, it’s okay to ask your doctor to slow down and explain things clearly, including next steps.

Your doctor may refer you to other specialists. For example:

Neurologist – A neurologist specialises in the brain and nervous system. They can assess memory, thinking skills and behaviour and order imaging tests to help diagnose dementia. They can also develop a treatment plan and prescribe medicine if needed.

Geriatrician – A geriatrician is a doctor who specialises in the health of older people. They can help in diagnosing dementia, develop treatment plans and review medicines. Geriatricians can provide support and advice for families, and coordinate care with other health professionals. They are also experts in supporting people with multiple health conditions.

Psychiatrist – A psychiatrist specialises in mental health. They can help determine if symptoms are related to dementia or another mental health condition. They can also help with symptom management, monitor medicines, and provide emotional support to help patients and families who have dementia.

Talking tips for medical appointments – podcast

Get practical tips for communicating with confidence in medical appointments.

Listen now

Talking tips for medical appointments – video

Get practical ways to maintain your sense of control and communicate your needs as you get older, including how to stay confident in medical appointments.

Duration: 20 min

How is dementia diagnosed?

A doctor is often the first point of contact for a diagnosis of dementia. When you see your doctor, they will:

  • ask about your symptoms and how they affect your daily life
  • ask about your diet and other lifestyle factors
  • review your medical history
  • do some cognitive checks
  • look for other causes or factors that might be involved
  • do a physical examination (e.g. to check your blood pressure, reflexes, weight).

They might refer you to a doctor with a special interest in dementia or a specialist to do more checks and assessments.

There is no single test to diagnose dementia. You will need to have different tests and reviews to see if other health conditions are causing your symptoms. For example:

  • blood and urine tests – to look for an illness that may be causing symptoms
  • cognitive and behavioural checks – to check your thinking abilities (e.g. a Mini-Mental State Examination)
  • imaging tests – to check the structure of your brain
  • a medicine review
  • a psychiatric assessment – to check for mental health conditions that may be causing symptoms.

Testing can take time, and you may not get an official diagnosis. You may be told that it’s ‘possible’ or ‘probable’ that you have dementia. Or you may get a diagnosis of mild cognitive impairment, which is different to dementia.

Who can diagnose dementia?

In Australia, different types of medical professionals are qualified to diagnose dementia.

Medical professionals who may be involved in the diagnosis process include:

  • doctors (GPs)
  • geriatricians – specialists in health conditions affecting older adults
  • neurologists – specialists in the brain and nervous system
  • psychiatrists – specialists in different types of mental health conditions
  • neuropsychologists – do detailed cognitive tests that are used by specialists to confirm a diagnosis.

Your GP and specialist will often work together to confirm a dementia diagnosis.

A diagnosis of Alzheimer’s disease must be confirmed by a specialist if you want to get medicine at a reduced price (the cost is partly covered by Medicare).

After a dementia diagnosis

If you’ve been diagnosed with dementia you may feel overwhelmed, but it’s good to know there’s lots of help available.

Dementia Australia supports people with dementia, their carers and families. Visit the website to find helpful information, including:

You can also:

To learn about aged care services and financial support from the Australian Government, visit My Aged Care.

If you’re diagnosed with dementia and you’re under 65 years, you may be able to get support through the National Disability Insurance Scheme (NDIS). Learn more about NDIS support for dementia on the Dementia Australia website.

It’s important to look after your mental health if you’ve been diagnosed with dementia. Learn how to care for your mental health when dealing with dementia.

Dementia prevention

You can’t always prevent dementia – even people doing all the right things can still develop it – but research shows there are ways to reduce the risk or delay its onset.

Risk factors for dementia that can’t be changed

A risk factor is something that increases the likelihood of developing a health condition.

Some risk factors for dementia can’t be changed, such as ageing and genetics.

Ageing is the main risk factor for developing dementia. The risk doubles every 5 or 6 years once you’re over 65.

Having a family history or a risk factor gene for dementia can increase the likelihood of developing the condition. But it’s important to know that this does not mean you will definitely develop it.

Even people with a higher genetic risk can lower their chance of developing dementia, or slow it down, by making healthy lifestyle changes and managing risk factors they can change.

Learn more about genetic risk of dementia on the Dementia Australia website.

Risk factors for dementia that can be changed

Research shows there are 14 risk factors for developing dementia that can be changed. There is no single ‘biggest’ risk factor. Each of these factors can add to your overall risk of developing the condition.

You can take steps to reduce the 14 risk factors, which are:

  • limited education
  • high blood pressure
  • hearing loss
  • smoking
  • being overweight
  • depression
  • physical inactivity
  • diabetes
  • traumatic brain injury
  • drinking too much alcohol
  • social isolation
  • exposure to air pollution
  • untreated vision loss
  • high LDL (bad) cholesterol.

If any of these affect you, it doesn’t mean you will develop dementia. But it’s important to be aware of the risks and discuss them with your doctor.

It’s also important to note that even though these factors can be changed, not everyone has an equal opportunity or supports in place to be able to change them. For example, some people face many barriers to physical activity, including being time-poor or having safety issues in public spaces.

Check your dementia risk profile with an online assessment tool developed by Neuroscience Research Australia and the University of Sydney.

How to reduce the risk of dementia

It’s never too early, or too late, to look after your brain.

For women, midlife is the ideal time to create brain-healthy habits and make lifestyle changes that support a healthy brain.

Research shows that nearly half of dementia cases can be prevented by addressing the 14 risk factors listed above.

Watch a Dementia Australia video on YouTube about reducing dementia risk.

What you can do to support brain health

Small, positive choices you make each day can support brain health over time.

If you’re wanting to reduce your risk of dementia or you’ve been diagnosed with dementia, these steps can support your brain health.

Staying connected as you age – podcast

Learn how to stay connected and care for your emotional health as you get older.

Listen now

Staying connected as you age – video

In this video, women’s health GP Dr Tessa King discusses how to stay connected and care for your emotional health as you get older.

Duration: 16 min

Explore a brain health tip sheet from Facing Dementia Together. It is available in different languages.

Brain health and life stages

There are many things you can do to reduce your risk of dementia and support brain health throughout your life.

We’ve listed our top 10 tips for different life stages below.

How to support your mental health when dealing with dementia

If you’ve been diagnosed with dementia or you’re worried about developing dementia, it’s important to look after your mental health.

We’ve listed some helpful tips below.

Want health information in your language?

Facing Dementia Together has information on dementia in Simplified Chinese, Traditional Chinese, Arabic and Vietnamese.

Facing Dementia Together