How can you reduce the risk of dementia?

Overview

Dementia may be a word that brings up images of elderly relatives struggling to remember names or events. But did you know that dementia isn't just an 'old person's disease'? While age is a significant risk factor, understanding dementia and taking steps to protect your brain health is vital at any age. So, let's dive into the world of dementia and explore how you can reduce your risk and keep your mind sharp for years to come.

What is dementia?

Picture your brain as a bustling city, with billions of neurons constantly communicating, forming memories, and enabling you to think, feel, and act. Dementia is like a gradual power outage in this city, causing disruptions in these connections. This leads to a decline in cognitive abilities such as memory, language, problem-solving, and even personality changes. Imagine losing your way in a familiar neighbourhood, forgetting the names of loved ones, or struggling to complete everyday tasks – the once simple act of making a cup of tea becomes an insurmountable challenge. That's the reality for those living with dementia. It's not just about forgetting where you put your keys, it's a progressive loss of self that impacts not only the individual but their loved ones too. Dementia covers a spectrum of cognitive disorders characterised by memory, thinking, judgment and understanding impairments. Dementia can be mild, moderate or severe and symptoms are usually progressive (get worse over time). In 2023, it was estimated that there were 411,100 (AIHW estimate) Australians living with dementia. Common forms of dementia include Alzheimer's disease, Lewy body dementia, Vascular dementia, Frontotemporal dementia, and Mixed dementia.

Causes of dementia

Dementia isn't a single disease but rather an umbrella term for various conditions that affect the brain. The most common cause is Alzheimer's disease, accounting for 60–80% of cases. In Alzheimer's, abnormal proteins build up in the brain, forming plaques and tangles that disrupt communication between neurons. It's like traffic jams and roadblocks clogging up the city, preventing essential information from getting through. Other types of dementia include vascular dementia, caused by reduced blood flow to the brain, often due to strokes or other cardiovascular problems. Imagine the city's power grid failing, leaving entire neighbourhoods in darkness. There's also Lewy body dementia, where abnormal protein deposits called Lewy bodies disrupt brain function, leading to hallucinations, movement problems, and fluctuating cognition. And fronto-temporal dementia, which affects the frontal and temporal lobes of the brain, causing changes in personality, behaviour, and language. It's as if the city's planning department and communication centres have been compromised, leading to chaos and confusion.

Early signs and symptoms

Initial symptoms and signs of dementia can be subtle. Symptoms can vary between different dementia syndromes and between different people. Symptoms may include:

1. Memory loss: people with dementia may lose track of recent discussions or events, misplace belongings, or struggle to recall important details. While occasional forgetfulness is normal with ageing, people with dementia may forget things more often or not remember them at all, especially for recent events.
2. Difficulty with communication: As dementia progresses, a person's ability to communicate may be affected. This may manifest as difficulty explaining something, finding the right words, or struggling to follow the thread of a conversation.
3. Disorientation: A person with dementia may lose track of time or place, get confused about location even in familiar places and get muddled about dates.
4. Problem-solving: A person with dementia may struggle with calculations and decision-making.
5. Emotional fluctuations or mood changes: A person with dementia may have mood changes, become irritable or anxious, or become socially withdrawn.
6. Spatial awareness: A person with dementia may struggle to judge distances or follow directions. They may find it difficult to navigate their way around their home or find their way home.
7. Apathy: A person with dementia may lose interest in tasks or activities they previously enjoyed.
8. Procedural skills: Everyday tasks may be challenging for people with dementia, e.g., cooking a meal, playing a game, and managing finances.

Why dementia prevention matters in Australia

Dementia has become the leading fatal disease in Australia since it surpassed heart disease as the leading cause of death. The current Australian population of 433,300 dementia patients will reach 812,000 by 2054 according to projections. Research indicates that 45% of dementia cases can be prevented or delayed through the management of risk factors which people can control. Early intervention provides two essential benefits which include maintaining independence and preserving our ability to enjoy life as we grow older.

How can dementia be prevented?

The prevention approach targets "modifiable risk factors" which represent elements of your health and lifestyle that you can modify. The process of prevention requires multiple approaches to protect your heart while keeping your brain active and social connections active. The development of cognitive reserve serves as a protective mechanism which enhances brain resistance to aging-related damage. Key Risk Factors The main risk factor for dementia development is age but these additional health and lifestyle elements increase your chances of developing the disease:

• Hearing Loss: The failure to manage hearing problems during middle age creates the largest preventable risk factor for dementia.
• Social Isolation: The negative impact of social isolation on brain health equals the negative effects of smoking.
• Heart Health Issues: The brain receives insufficient blood flow because of high blood pressure and high cholesterol and obesity.
• Depression: The development of depression during later life stages creates an increased risk for dementia.
• Physical Inactivity: People who spend most of their time sitting down face an increased risk of developing cognitive decline.
• Smoking: People who smoke face a significantly higher risk of developing dementia compared to non-smokers.

Ways to Reduce Dementia Risk

Look After Your Heart

The health of your heart directly affects the health of your brain.

• Manage Blood Pressure: People should maintain healthy blood pressure levels starting from their 40s until their older age.
• Check Cholesterol: Regular online doctor or medical practitioner checks are essential because high LDL cholesterol levels can block blood flow to the brain.

Get Moving

Physical exercise boosts blood circulation to the brain while promoting brain cell development.

• Aim for 30 Minutes: The Australian health guidelines recommend at least 30 minutes of moderate physical activity throughout most days.

The best exercise results occur when you combine aerobic activities like walking and swimming with resistance training that includes weightlifting.

Eat for Brain Health

Your brain function and repair processes depend on the nutrients you consume through your diet. Research shows that eating foods rich in leafy greens and fish and nuts and olive oil helps slow down cognitive decline.

Challenge Your Brain

Your mental abilities require the same level of maintenance as your physical strength does. Learning a new language or playing an instrument provides better cognitive benefits than solving basic puzzles. New experiences help create fresh neural pathways which enhance your brain's protective reserve.

Stay Socially Connected

Social interaction serves as excellent support according to Australian social norms because Australians enjoy spending time with others. People who join social groups such as bowling clubs or choirs or walking groups experience brain protection through regular social activities. People who experience difficulty hearing conversations in noisy areas should schedule a hearing test because hearing loss tends to cause social withdrawal. Note: This information is for educational purposes only. You should consult a medical practitioner before attempting new wellness programs or lifestyle changes to ensure they are safe for your specific condition.

Dementia Risk Reduction in Different Age Groups

Mid-life (age 40–65) is a critical window for dementia prevention, particularly for managing blood pressure and hearing loss. People in this age range should focus on managing their high blood pressure and their hearing loss and preventing head injuries. The recommended alcohol consumption for Australians should not exceed 10 standard drinks per week. Later Life (65+): The main focus during this period should be on social connection maintenance and physical activity to prevent frailty and smoking cessation. The management of depression becomes more critical for people in this age group. Any age-related health improvements you make will benefit your brain function. The brain benefits from dietary changes and physical activity even when people start making these changes during their 70s or 80s.

What can you do about early warning signs of dementia?

If you or someone you know is showing symptoms or signs of dementia, taking the right steps early on can help. Here are some actions you can take:

1. Recognise the signs: Recognising early indicators of dementia (e.g., memory loss, particularly of recent events, difficulty concentrating or solving issues, confusion about time or location and mood changes such as irritation or anxiousness) can result in earlier diagnosis and earlier access to support and potential management.
2. Consult with a healthcare professional: If you think you may have symptoms of dementia consult a doctor as soon as possible. Early assessment and diagnosis means that help and support can be provided earlier. Early intervention can improve quality of life.
3. Healthy living: Regular physical activity and a healthy balanced diet are important for general health and brain function. Mental stimulation and social connection are also important aspects of health for people with dementia.
4. Seek support: Individuals with dementia can access support from many places. Some people with dementia, and their families, find support groups helpful. These can offer an opportunity to seek support from people with similar experiences. Having a support network helps alleviate stress and uncertainty.

When to consult a doctor?

You should visit your doctor immediately when you start experiencing memory loss symptoms. Schedule an appointment when you experience any of the following situations:

• You want to learn about your dementia risk because your family history shows this condition.
• People who reach age 45 need to schedule their first heart health check which includes blood pressure and cholesterol tests.
• You should visit a doctor when you experience any signs of memory loss or mood changes or when you struggle with familiar tasks.
• You should visit a doctor when you observe your loved one experiencing confusion or displaying unusual behavioural patterns.

Where to get help?

If you need help with dementia, consider these resources:

• Health practitioner or GP: Consult a general practitioner or a specialist for diagnosis and management options. They can guide you on the next steps and refer you to other services.
• Local council: Your local council can provide information on community services and support available in your area.
• Local community health centre: These centers offer various health services and can provide support for dementia care and resources.
• National Dementia Helpline, Dementia Australia: Call 1800 100 500 for information, support, and resources related to dementia.
• Dementia Behaviour Management Advisory Service (DBMAS): For 24-hour telephone advice for carers and care workers, call 1800 699 799.

How Hola Health Can Help

Hola health is a convenient option for appropriate healthcare needs and can complement in-person healthcare. Hola Health is an Australian telehealth platform that connects you with AHPRA-registered doctors and medical practitioners in Australia. Accessing a consultation via telehealth allows you to discuss symptoms or health concerns from your home. This can be particularly useful for initial medical advice and the assessment of risk factors. Depending on your professional assessment and the practitioner’s clinical judgement, a Hola Health clinician may assist with:

• Clinical Consultations: 24/7 access to medical advice and healthcare assessments with a online doctor or medical practitioner in Australia.
• Online prescription: Consultations for script refills or new medications for chronic condition management, such as blood pressure or cholesterol, if clinically appropriate.
• Online Dr Certificates: Provision of certificates for work or personal leave, following clinical assessment and if deemed appropriate by the practitioner.
• Referrals: Referrals to specialists or for diagnostic imaging (excluding CT scans or MRI services), if clinically appropriate.
• Pathology Requests: Requests for blood tests or other diagnostic investigations based on the practitioner's professional judgement.

Note: Hola Health does not directly provide imaging services (such as CT or MRI scans) or hearing tests; these are discussed for educational purposes and require external providers.

FAQs

Can dementia be reversed?

The medical community has not discovered any management which can reverse dementia symptoms. Proper diagnosis becomes essential because some conditions that cause dementia-like symptoms can be managed successfully.

Does brain training really help?

The scientific evidence about brain training programs remains unclear. The scientific evidence about commercial brain training games shows inconsistent results. Real-world challenges provide better results than commercial brain training games. The acquisition of new skills through learning instruments or languages together with complex social interactions proves more effective than using basic memory games on mobile devices.

Is dementia hereditary?

The development of dementia does not directly result from inherited genes. The majority of dementia cases develop without any direct genetic transmission. The risk of developing dementia increases slightly when someone has family members with the condition but lifestyle choices such as diet and exercise and smoking habits play a greater role in disease development.

What foods help prevent dementia?

The MIND diet stands as the most recommended food plan for dementia prevention. The MIND diet unites elements from the Mediterranean diet and DASH diet to recommend leafy greens and berries and nuts and whole grains and fish and poultry while restricting red meat and sweets.

How much exercise is enough?

The recommended exercise duration for health benefits should reach 150 minutes of moderate-intensity physical activity weekly. You should perform 30 minutes of brisk walking or swimming or cycling five times per week to achieve heart rate elevation.

Does coffee help or harm brain health?

Research shows that moderate coffee consumption between 1–2 cups daily may help protect against cognitive decline. The brain benefits from coffee consumption but people should avoid drinking too much because high caffeine levels can disrupt their sleep patterns.