Receiving an Alzheimer’s diagnosis, or even suspecting that something may be wrong, can feel overwhelming. Many families find themselves searching for answers, trying to understand what Alzheimer’s is, how it differs from other forms of dementia, and what the future might look like for someone they love.

This guide explains the early signs of Alzheimer’s, how the condition progresses, how a diagnosis is made, what treatments are available, and practical ways to support someone living with it. It also covers when additional care might help, and how to access financial support.

What is Alzheimer’s disease?

Alzheimer’s disease is a progressive neurological condition that affects memory, thinking and behaviour. It is the most common cause of dementia, accounting for around 60–70% of all dementia cases in the UK.

The condition develops when abnormal protein deposits, known as amyloid plaques and tau tangles, build up in the brain, gradually damaging and destroying nerve cells. This process typically begins years before any symptoms become noticeable.

Alzheimer’s affects everyone differently, but in most cases it begins with problems with memory, particularly the ability to recall recent events before progressing to affect other areas of daily life, including communication, judgement and physical functioning.

Although there is currently no cure for Alzheimer’s disease, with the right understanding and support, many people continue to live well for years after diagnosis.

Alzheimer’s disease and dementia: what’s the difference?

The terms Alzheimer’s and dementia are often used interchangeably, but they do not mean the same thing. Understanding the difference can help families ask the right questions and access the most appropriate support.

	Dementia	Alzheimer’s Disease
What it is	An umbrella term for a group of symptoms affecting memory, thinking and behaviour	A specific disease and the most common cause of dementia
Cause	Many underlying causes — including Alzheimer’s, vascular disease and Lewy body disease	Progressive damage to brain cells caused by amyloid plaques and tau protein tangles
How common	Around 900,000 people in the UK are living with dementia	Alzheimer’s accounts for approximately 60–70% of all dementia cases
First symptoms	Varies depending on the type of dementia	Often begins with memory loss, particularly of recent events
Relationship	Dementia is the condition	Alzheimer’s is one specific cause of dementia

In short: dementia describes a set of symptoms, whilst Alzheimer’s disease is one of the conditions that can cause those symptoms. Not everyone with dementia has Alzheimer’s, but the majority do.

Other common types of dementia include vascular dementia, Lewy body dementia and frontotemporal dementia. Each has its own pattern of symptoms and progression, though there can be significant overlap.

What causes Alzheimer’s disease?

The exact cause of Alzheimer’s disease is not yet fully understood, but research has identified clear changes that occur in the brains of people with the condition.

The most widely accepted explanation centres on the abnormal build-up of two proteins in and around brain cells:

• Amyloid plaques — clumps of a protein called beta-amyloid that accumulate between nerve cells, disrupting communication
• Tau tangles — twisted strands of a protein called tau that build up inside nerve cells, interfering with their ability to function and survive

This damage typically begins in the areas of the brain responsible for memory, which is why memory loss is usually the earliest symptom. Over time, the damage spreads to other parts of the brain, affecting a wider range of functions.

Crucially, this process can begin ten to twenty years before any noticeable symptoms appear. By the time a diagnosis is made, significant changes are already underway in the brain.

Risk factors for Alzheimer’s disease

Whilst Alzheimer’s disease cannot always be prevented, understanding the risk factors can help families make informed decisions about health and lifestyle. Some risk factors cannot be changed, but several can be actively managed.

Risk factors that cannot be changed

• Age is the most significant risk factor. Risk roughly doubles every five years after the age of 65
• Family history — having a close relative with Alzheimer’s slightly increases the likelihood of developing the condition
• Genetics — a small number of cases, known as early-onset familial Alzheimer’s, are linked to specific inherited gene mutations. This accounts for fewer than 1% of all cases
• Down’s syndrome — people with Down’s syndrome have a significantly higher lifetime risk of developing Alzheimer’s

Risk factors that can be managed

Research increasingly shows that lifestyle choices can influence the risk of developing Alzheimer’s or delay its onset. The following are all associated with higher risk and are, to varying degrees, within our control:

• Cardiovascular health — high blood pressure, high cholesterol, type 2 diabetes and obesity in midlife are all linked to increased risk
• Physical inactivity — regular exercise is one of the most consistently protective lifestyle factors
• Smoking — associated with higher risk, likely due to its impact on blood vessel health
• Excessive alcohol consumption
• Hearing loss — increasingly recognised as a significant and modifiable risk factor. Treating hearing loss in midlife may reduce risk
• Social isolation and loneliness — both associated with faster cognitive decline
• Depression — a known risk factor, though the relationship is complex and not fully understood
• Poor sleep — emerging evidence suggests that chronic poor sleep may accelerate the build-up of amyloid in the brain

An important note Having one or more of these risk factors does not mean someone will develop Alzheimer’s. Many people with multiple risk factors never develop the condition, whilst others with none do. What the evidence does suggest is that looking after cardiovascular health, staying physically and socially active, and addressing hearing loss are all genuinely worthwhile steps.

Early signs and symptoms of Alzheimer’s

The early signs of Alzheimer’s can be subtle and may develop gradually over months or even years. They are sometimes confused with normal ageing, which is why it is important to understand what to look out for.

Memory problems

Difficulty remembering recently learned information is one of the earliest and most recognised signs. This may show up as forgetting appointments, repeating the same questions within a short space of time, or misplacing objects and being unable to retrace steps to find them.

It is worth noting that occasionally forgetting a name or appointment, then remembering it later, is a normal part of ageing. With Alzheimer’s, the forgetting tends to be more persistent and does not resolve with a prompt.

Difficulty finding words

People in the early stages of Alzheimer’s may struggle to find the right words mid-conversation, substitute unusual words, or stop speaking without completing a thought. Following or joining in conversations may become more difficult.

Losing track of time and place

Confusion about dates, seasons or the passage of time is common. Someone with Alzheimer’s may lose track of where they are, how they got there, or what day it is even in familiar surroundings.

Changes in mood and personality

Alzheimer’s can cause noticeable changes in mood, including increased anxiety, low mood, irritability or suspicion. Someone who was previously sociable may become withdrawn. These changes can be difficult to distinguish from depression, which is also common in people with early Alzheimer’s.

Difficulty with familiar tasks

Everyday tasks that were once straightforward, managing finances, following a recipe or planning a journey may become confusing or overwhelming. This is often one of the signs that first prompts families to seek advice.

Withdrawal from social activities

A person with early Alzheimer’s may lose interest in hobbies, social activities or spending time with others. This is sometimes due to the effort involved in keeping up with conversations or managing unfamiliar situations.

A note on symptoms Not everyone experiences Alzheimer’s in the same way. If you are concerned about a loved one, speaking to a GP is always a good first step.

Getting an Alzheimer’s diagnosis

When should you speak to a GP?

If you or a family member are experiencing persistent memory problems or other symptoms that are interfering with daily life, it is worth speaking to a GP. There is no need to wait until symptoms feel severe. An early conversation can open the door to support and, if needed, onward referral to a specialist.

It can help to keep a brief note of the symptoms you have noticed, when they started, and how frequently they occur.

What happens during an assessment?

A GP assessment will typically include a conversation about symptoms and medical history, along with simple memory and cognitive tests. Blood tests may also be carried out to rule out other causes of memory problems, such as thyroid conditions or vitamin deficiencies.

If the GP feels further investigation is needed, they will refer to a memory clinic or specialist (usually a geriatrician, neurologist or psychiatrist with expertise in dementia).

Memory clinics and specialist referrals

Memory clinics offer more detailed assessment, which may include brain scans (such as an MRI or CT scan) and more comprehensive cognitive testing. A diagnosis of Alzheimer’s is usually made following this more thorough process.

Why an early diagnosis can help

An early diagnosis enables families to plan ahead, understand what to expect, and access support at the right time. It also allows the person with Alzheimer’s to be involved in decisions about their own care whilst they are still well placed to do so.

Is there a treatment for Alzheimer’s disease?

There is currently no cure for Alzheimer’s disease, but there are treatments that can help manage symptoms and, in some cases, slow the progression of the condition.

Medications to manage symptoms

Four medications are currently approved in the UK to help manage the cognitive symptoms of Alzheimer’s disease:

• Donepezil — used across all stages of Alzheimer’s
• Rivastigmine — used for mild to moderate Alzheimer’s
• Galantamine — used for mild to moderate Alzheimer’s
• Memantine — used for moderate to severe Alzheimer’s, and sometimes in combination with one of the above

These medications work by affecting the chemicals in the brain involved in memory and communication between nerve cells. They do not stop the progression of Alzheimer’s, but they can help maintain cognitive function and manage symptoms such as memory loss, confusion and agitation for a period of time. Not everyone responds to them in the same way.

Other medications may be prescribed to manage specific symptoms associated with Alzheimer’s, including antidepressants for low mood and anxiety, and sleep aids where sleep is significantly disrupted.

Non-medication approaches

Alongside medication, a range of non-pharmacological approaches can meaningfully support wellbeing in people with Alzheimer’s:

• Cognitive stimulation therapy (CST) — a structured programme of activities designed to improve memory, problem-solving and social interaction, recommended by NICE for people with mild to moderate dementia
• Reminiscence therapy — using photographs, music and familiar objects to support memory and emotional wellbeing
• Physical activity — consistently linked to slower cognitive decline and improved mood
• Music therapy — familiar music can reach parts of memory that other forms of communication cannot, and is often used to reduce agitation
• Occupational therapy — helping adapt the home environment and daily routines to support independence for longer

A note for families If a loved one has recently been diagnosed, it is worth asking the memory clinic or GP specifically about which treatments or therapies are available locally and whether a referral to a dementia support service or occupational therapist would be appropriate. Access to these services varies by area.

How Alzheimer’s progresses: the stages

Alzheimer’s is a progressive condition, which means symptoms gradually worsen over time. The rate of progression varies considerably from person to person. Some people remain in the early stages for many years, whilst others experience a faster decline.

Understanding the typical stages can help families plan ahead and anticipate changing needs, even though not everyone’s experience will follow the same path.

Early-stage Alzheimer’s

In the early stages, many people remain largely independent. Memory difficulties may be noticeable but manageable, and the person may still be able to drive, work and participate in social activities.

Families may notice:

• Increasing forgetfulness, particularly of recent events
• Repeating questions or stories
• Difficulty with planning or problem-solving
• Occasional confusion or disorientation
• Mild changes in mood or personality

Support at this stage often focuses on maintaining independence, building helpful routines, and ensuring the person feels reassured rather than overwhelmed.

Middle-stage Alzheimer’s

As Alzheimer’s progresses into the middle stage, memory loss and confusion become more significant. The person may require more support with everyday tasks and may no longer be safe to live fully independently without some assistance.

Families may notice:

• Increased difficulty recognising familiar people or places
• Greater confusion about time, day and season
• Difficulty managing personal care independently
• Changes in sleep patterns
• More pronounced mood changes, anxiety or agitation
• Repetitive behaviour or questions

Consistent routines, familiar faces and a calm environment become particularly important during the middle stage. Many families begin to explore additional support at this point.

Later-stage Alzheimer’s

In the later stages, care needs become more complex. The person may require support with most or all aspects of daily life, including personal care, eating and mobility.

Families may notice:

• Significant memory loss, including difficulty recognising close family members
• Limited verbal communication
• Difficulty swallowing or eating
• Reduced mobility or becoming bedbound
• Increased vulnerability to infections

Care at this stage focuses on maintaining comfort, dignity and quality of life. Around-the-clock support, whether at home or in a care setting, is often needed.

Important Progression varies considerably between individuals. A diagnosis of Alzheimer’s does not follow a fixed timeline, and many people live well for years at each stage with the right support in place.

Living well with Alzheimer’s

A diagnosis of Alzheimer’s does not mean life stops. With the right support, environment and attitude, many people continue to find meaning, enjoyment and connection for years after diagnosis. Living well with Alzheimer’s is not only possible ,for many it becomes a deliberate and supported way of life.

Maintaining familiar routines

Familiar routines provide structure and reduce the anxiety that comes with uncertainty. Regular mealtimes, consistent morning routines and predictable daily rhythms help the brain navigate the day with less effort and confusion.

One of the first things our carers notice is how much calmer someone becomes when their morning routine stays exactly as it always was – same cup, same chair, same order. Those small things really help.

Supporting independence

The aim is always to enable, not to replace. Adapting tasks rather than taking them over entirely. Laying out clothes to choose from rather than dressing someone, or prompting steps in a familiar task rather than completing it on their behalf, helps preserve dignity and confidence for as long as possible.

In our experience, people with Alzheimer’s often retain the ability to do far more than those around them realise. They simply need a little more time, and a little less intervention.

Staying socially connected

Social connection is one of the most powerful contributors to wellbeing in people with Alzheimer’s. Regular contact with family, friends and the wider community reduces isolation and helps maintain a sense of identity and belonging.

If formal social activities have become more difficult, simpler one-to-one connection , a shared cup of tea, looking through old photographs together, listening to familiar music,  can be just as meaningful.

Physical health and nutrition

Regular gentle movement such as a short walk, some light gardening, simple exercises at home supports physical health, lifts mood and helps with sleep, without placing demands on memory. Good nutrition and hydration matter just as much. Dehydration in particular can worsen confusion and increase the risk of falls. If mealtimes are becoming difficult, smaller and more frequent meals, familiar foods and a calm eating environment can all help.

Creating a dementia-friendly home

Small changes to the home environment can make a significant difference to safety and independence. These might include:

• Good lighting throughout, especially in hallways and on stairs
• Removing trip hazards such as loose rugs or cluttered walkways
• Clear labelling on cupboards and rooms
• A visible clock and calendar in a prominent place
• Familiar and meaningful objects kept within easy reach
• Door alarms or key safes to support safe movement in and out of the home

Planning ahead

Whilst it may feel difficult to look ahead, planning early gives the person with Alzheimer’s the opportunity to be involved in decisions about their future care, finances and wishes. Putting a Lasting Power of Attorney in place whilst the person still has mental capacity is one of the most important and practical steps a family can take.

Supporting someone with Alzheimer’s

Supporting a loved one with Alzheimer’s is one of the most meaningful and demanding things a family can do. The practical guidance below covers communication, managing difficult moments, and looking after yourself alongside your loved one.

Communicating effectively

Communication with someone with Alzheimer’s requires patience and adaptation. Some practical approaches include:

• Speaking slowly and clearly, using short sentences
• Using their name at the start of a conversation
• Avoiding questions that test memory instead, offer gentle prompts
• Focusing on feelings rather than facts when responding to confusion
• Using non-verbal communication, a reassuring touch or calm tone, where words become difficult

If someone asks a question you have just answered, answer it again with the same warmth. The question feels new to them every time.

Managing frustration and anxiety

Changes in behaviour such as agitation, repetitive questions, resistance to help are a common part of Alzheimer’s and are rarely deliberate. They are often a sign of distress, confusion or an unmet need.

Responding calmly, reducing background noise and distraction, and trying to identify any underlying trigger (discomfort, hunger, needing the bathroom) can help de-escalate difficult moments.

Our carers find that simply slowing down and matching the pace of the person in front of them rather than trying to move things along – This can transform a difficult moment into a calm one.

What if they refuse help?

Resistance to accepting help is extremely common and can feel deeply frustrating. For many people, accepting support represents an acknowledgement of loss of independence, which understandably feels difficult.

Introducing help gradually — starting with companionship or assistance with one specific task — is often more effective than trying to implement comprehensive support all at once. 

Families often tell us the breakthrough came not when they arranged care, but when the carer simply became a familiar, welcome face. The carer was someone who happened to help rather than someone who was there to take over.

Looking after yourself as a family carer

Caring for someone with Alzheimer’s is emotionally and physically demanding, and the impact on family carers is often underestimated. Grief, guilt, exhaustion and isolation are all common experiences, and they are entirely understandable.

Looking after yourself is not selfish — it is essential. The Alzheimer’s Society and Carers UK both offer practical guidance, helplines and peer support specifically for family carers.

Families often say that accepting help for themselves was the hardest step and the one that made the biggest difference.

When might additional support be helpful?

There is no single right moment to seek additional support, but there are some common signals that families describe as the point at which they started to look for help.

Additional support may be worth considering when:

• Meals are being missed or the person is losing weight
• Medication is frequently forgotten or taken incorrectly
• Safety concerns are increasing — falls, leaving the hob on, getting lost
• Personal care is becoming difficult or is being declined
• The person is increasingly isolated or distressed
• Family carers are struggling to cope with the demands of care

Support does not always mean full-time care. Many families begin with a few hours of visiting care each week, help with meals, personal care or companionship and adjust the level of support as needs change. This gradual approach often feels less overwhelming and can help build trust with a carer over time.

Helpful next steps If you are beginning to think about care options for a loved one with Alzheimer’s, our guides to Alzheimer’s Care at Home and Dementia Care explain what home care involves, what to expect, and how to find the right support. [INTERNAL LINK: Alzheimer’s Care at Home] [INTERNAL LINK: Dementia Care]

Financial support and benefits

Many families are unsure what financial support may be available to help with the cost of Alzheimer’s care. The main sources of support in England are summarised below.

Attendance Allowance

Attendance Allowance is a non-means-tested benefit available to people over state pension age who need help with personal care or supervision due to a physical or mental condition. Alzheimer’s disease qualifies. It is paid at two rates depending on the level of need, and receiving it does not affect other benefits.

NHS Continuing Healthcare

For individuals whose primary care needs are health-related rather than social, the NHS may fund the full cost of care through NHS Continuing Healthcare (CHC). Eligibility is assessed through a formal process and is not means-tested. It can cover care at home as well as in a care home setting.

Local authority support

People who do not qualify for NHS funding may be eligible for means-tested financial support from their local authority. This follows a care needs assessment and a financial assessment. Those who meet the threshold for support can receive funding towards care costs, though a contribution from savings or income may be required.

Self-funding

Many families fund care privately, at least initially. Starting with a small amount of support and increasing it as needs change is a common approach. Independent financial advisers who specialise in later life care can help families plan ahead and ensure their finances are structured in the most effective way.

For a more detailed guide to funding options, see our Financial Support Guide.

Frequently asked questions

Further help and resources

The following pages and guides may be useful as you navigate next steps:

• Alzheimer’s Care at Home
• Dementia Care
• Types of Dementia
• Stages of Dementia
• Financial Support Guide

External organisations offering support and information include the Alzheimer’s Society, Carers UK and the NHS dementia pages.