Dementia vs Alzheimer's Disease - What Is the Difference?

Dementia is a general umbrella term used to describe a decline in cognitive abilities, such as memory and reasoning. Alzheimer's disease is a specific condition and the most common cause of dementia. Knowing the distinction helps families find the right support and care plan.

Dementia acts as an umbrella term for cognitive decline, while Alzheimer's is a specific disease characterised by amyloid plaques.
Identify early indicators of memory loss and arrange a free consultation for personalised homecare support.
Comfort Keepers provides clinically-led dementia care and respite support for older persons across Ireland.
An early assessment can give families more time to plan support and think through a care plan.
Maintaining physical activity and a healthy routine can help reduce risks and keep individuals strong.

World Alzheimer's Month

September marks World Alzheimer's Month, and our World Alzheimer's Day guide is a useful place to learn more about dementia and the terminology we use to define it.

These terms are often used interchangeably, but they refer to different conditions. Recognising the difference between dementia and Alzheimer's can help improve care, support, and awareness.

Read on to find out what sets dementia and Alzheimer's disease apart, their symptoms, and how they impact individuals and families.

What is Dementia?

Dementia is a general term rather than a specific disease. It is used to describe a decline in cognitive function - a collection of symptoms affecting memory, reasoning, and behaviour that can interfere with doing all sorts of everyday activities. Some types of dementia include:

Alzheimer's Disease
Vascular Dementia
Lewy Body Dementia
Frontotemporal Dementia
Mixed Dementia

For families who need practical support, our dementia and Alzheimer's care service can help individuals stay safe and comfortable at home.

Even though older persons are more prone to dementia, it is not a normal part of ageing. At least one report suggests that the number of people living with dementia in Ireland will rise to 113,000 by 2036. That's in line with the country's growing ageing population.

What Are the Normal Signs of Ageing vs Dementia?

Many older persons never develop dementia. Normal ageing often involves weaker muscles, fragile bones, and stiffening arteries. Despite these changes, experiences and knowledge built up over a lifetime typically remain intact. But it is not uncommon for older persons to:

Lose car keys occasionally
Struggle to think of a word, but remember it later
Forget the name of someone they've met before

If these changes begin to affect daily life, our guide to signs your loved one may need support at home can help you identify the next step in arranging support.

Early Indicators of Dementia

Dementia refers to a range of conditions, and its symptoms can vary greatly in different people. Here are common early signs of dementia:

Memory Loss

Being unable to remember the name of a close friend or relative
Forgetting memories from earlier in life

Communication Challenges

Using odd words when referring to familiar objects
Struggling to express thoughts or understand others.

Cognitive and Problem-Solving Issues

Reasoning, solving problems, and exercising judgement
Being unable to finish tasks independently

Visual Perception Changes

Their eyesight is beyond normal age-related changes in vision

Disorientation and Confusion

Getting lost in places they're familiar with

What is Alzheimer's?

Alzheimer's disease is the most common type of dementia. The World Health Organisation says it may contribute to 60 to 70% of cases. It is characterised by a build-up of protein in the brain cells, including amyloid plaques and tau tangles. Symptoms develop gradually over the years and worsen over time.

Typical Symptoms of Alzheimer's

The first signs of Alzheimer's can be very similar to those of normal ageing. But they become more severe over time. Other symptoms that can develop include:

Memory and Cognitive Challenges

General confusion.
Difficulty remembering conversations, names, or places
Difficulty planning or making decisions.

Physical and Functional Decline

Difficulties moving around and performing self-care tasks

When daily routines such as washing, dressing, or meals become harder to manage, personal care can make everyday life safer and more comfortable.

Personality and Behavioural Changes

Changes in personality, such as being aggressive, demanding, or suspicious.
Experiencing hallucinations or believing untruths.

Emotional Impact

Feelings of depression and anxiety.

Importance of Early Diagnosis

An early assessment can give individuals and families more time to plan support, ask questions, and think through the next steps. A considerable number of cases occur in individuals under 65, known as early-onset Alzheimer’s.

Because Alzheimer’s develops slowly, it can be hard to diagnose. The disease can sometimes also stop people from recognising changes in their ability to remember. That said, getting a diagnosis as early as possible is helpful.

How is Alzheimer's Disease Diagnosed?

There is no single test for Alzheimer's disease. The HSE's guidance on Alzheimer's diagnosis explains that a GP can carry out initial checks and may refer someone to a specialist such as a psychiatrist, geriatrician, or neurologist. Further assessment may include memory and thinking tests, blood tests, and, in some cases, brain scans.

Treatment Options for Alzheimer's Disease

There is no cure for Alzheimer's disease at present. The HSE's treatment guidance for Alzheimer's disease explains that support may include therapies, activities, and medicines that can help some people manage symptoms.

Psychological support and cognitive stimulation may also help with memory, language, and problem-solving for some individuals.

Creating a daily routine can also be beneficial. The benefits of a routine help provide structure and reduce confusion.

Homecare Support

Homecare can be essential to help individuals living with Alzheimer's live independently. It can involve making changes to the home environment, such as improving accessibility and creating memory aids for daily tasks.

As the condition progresses, some individuals may need more support with eating, swallowing, mobility, and personal care. In later stages, comfort-focused support can become an important part of the care plan.

Some families also need extra breathing space along the way, and respite care for families can help while a loved one continues to receive support at home.

Dementia and Alzheimer's Care

Caring for someone with any kind of dementia, including Alzheimer's, can be emotionally and financially challenging. Support is available through:

Charities such as the Alzheimer Society of Ireland
Support groups, online communities, and daycare centres
Carer's Allowance and Carer's Benefit

Support at Home for Families

If you are caring for someone with dementia, you are not alone. It can help you connect with others who may be experiencing issues similar to yours.

Regular companionship care can also help a loved one stay socially connected and less isolated at home.

The highly skilled team at Comfort Keepers can provide extra homecare support to ease pressure on families and help individuals remain comfortable in familiar surroundings.

Can Lifestyle Choices Reduce the Risk of Dementia?

While there is no certain way to prevent Alzheimer's disease, the HSE advises that healthy lifestyle habits may help reduce risk. Regular physical activity, a balanced diet, and social connection can all support day-to-day wellbeing for individuals and family carers.

Speak to Our Dementia Care Team

If you or a loved one is struggling with a dementia diagnosis or needs homecare, get in touch with us now. Organise a free consultation by calling us on 01 892 1302 or contacting our dementia care team.

If you are weighing up the right level of support, our guide to choosing a homecare package to suit your needs is a practical next step.