Alzheimer's Disease

Published: September 2017

September 2017 will mark the fifth global World Alzheimer’s Month™, an international campaign to raise awareness and challenge stigma. The theme for World Alzheimer’s Month 2017 is Remember Me. We are asking you to get involved by sharing your favourite memories, or memories of a loved one, on social media this September.

Alzheimer's disease is the most common type of dementia.

Dementia is a progressive neurological disease which affects multiple brain functions, including memory.

 

The exact cause of Alzheimer's disease is unknown, although a number of things are thought to increase your risk of developing the condition. These include:

  • increasing age

  • a family history of the condition

  • previous severe head injuries

 

lifestyle factors and conditions associated with cardiovascular disease

It's becoming increasingly understood that it's very common to have both changes of Alzheimer's and vascular dementia together (mixed dementia).

 

Signs and symptoms of Alzheimer's disease

Alzheimer's disease is a progressive condition, which means the symptoms develop gradually and become more severe over the course of several years. It affects multiple brain functions.

The first sign of Alzheimer's disease is usually minor memory problems. For example, this could be forgetting about recent conversations or events, and forgetting the names of places and objects.

 

As the condition develops, memory problems become more severe and further symptoms can develop, such as:

  • confusion, disorientation and getting lost in familiar places

  • difficulty planning or making decisions

  • problems with speech and language

  • problems moving around without assistance or performing self-care tasks

  • personality changes, such as becoming aggressive, demanding and suspicious of others

  • hallucinations (seeing or hearing things that aren't there) and delusions (believing things that are untrue)

  • low mood or anxiety

Who is affected?

Alzheimer's disease is most common in people over the age of 65, and affects slightly more women than men.

The risk of Alzheimer's disease and other types of dementia increases with age, affecting an estimated 1 in 14 people over the age of 65 and 1 in every 6 people over the age of 80.

 

However, around 1 in every 20 cases of Alzheimer's disease affects people aged 40 to 65.

Receiving a diagnosis

 

As the symptoms of Alzheimer's disease progress slowly, it can be difficult to recognise that there's a problem. Many people feel that memory problems are simply a part of getting older.

 

However, a timely diagnosis of Alzheimer's disease can give you the best chance to prepare and plan for the future, as well as receive any treatment or support that may help.

 

If you're worried about your memory or think you may have dementia, it's a good idea to see your GP. If you're worried about someone else, you should encourage them to make an appointment and perhaps suggest that you go along with them.

 

There's no single test that can be used to diagnose Alzheimer's disease. Your GP will ask questions about any problems you are experiencing and may do some tests to rule out other conditions.

 

If Alzheimer's disease is suspected, you may be referred to a specialist memory service to:

  • discuss the process of making the diagnosis

  • organise testing 

  • create a treatment plan

How Alzheimer's disease is treated

There's no cure for Alzheimer's disease, but medication is available that can help relieve some of the symptoms and slow down the progression of the condition in some people.

 

Various other types of support are also available to help people with Alzheimer's live as independently as possible, such as making changes to your home environment so it's easier to move around and remember daily tasks.

 

Psychological treatments such as cognitive stimulation therapy may also be offered to help support your memory, problem solving skills and language ability.

 

Outlook

On average, people with Alzheimer's disease live for around 8 to 10 years after they start to develop symptoms. However, this can vary considerably from person to person. Some people with the condition will live longer than this, but others will not.

 

Alzheimer's disease is a life-limiting illness, although many people diagnosed with the condition will die from another cause.

 

As Alzheimer’s disease is a progressive neurological condition, it can cause problems with swallowing. This can lead to aspiration (food being inhaled into the lungs) which can cause frequent chest infections. It's also common for people with Alzheimer’s disease to eventually have difficulty eating and to have a reduced appetite. 

 

There's increasing awareness that people with Alzheimer’s disease need palliative care. This includes support for families, as well as the person with Alzheimer's.

 

Can Alzheimer's disease be prevented?

As the exact cause of Alzheimer's disease isn't clear, there's no known way to prevent the condition. However, there are things you can do that may reduce your risk or delay the onset of dementia, such as:

  • stopping smoking and cutting down on alcohol

  • eating a healthy, balanced diet and maintaining a healthy weight

  • staying physically fit and mentally active

These measures have other health benefits, such as lowering your risk of cardiovascular disease and improving your overall mental health.

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