The word ‘dementia’ describes a set of symptoms that may include memory loss and difficulties with thinking, problem-solving or language.
These changes are often small to start with, but for someone with dementia they have become severe enough to affect daily life.
A person with dementia may also experience changes in their mood or behaviour.
Dementia is caused when the brain is damaged by diseases, such as Alzheimer’s disease or a series of strokes. Alzheimer’s disease is the most common cause of dementia, but not the only one.
The specific symptoms that someone with dementia experiences will depend on the parts of the brain that are damaged and the disease that is causing the dementia.
The different types of dementia tends to affect people differently, especially in the early stages. Other factors that will affect how well someone can live with dementia include how other people respond to them and the environment around them.
A person with dementia will have cognitive symptoms (to do with thinking or memory). They will often have problems with some of the following:
A person with dementia will also often have changes in their mood. For example, they may become frustrated or irritable, apathetic or withdrawn, anxious, easily upset or unusually sad. With some types of dementia, the person may see things that are not really there (visual hallucinations) or strongly believe things that are not true (delusions).
The symptoms of these types of dementia are often different in the early stages but become more similar in the later stages. This is because more of the brain is damaged as the different diseases progress. In the later stages of dementia, the person will need more and more support to carry out everyday tasks.
However, many people with dementia live well for years after their diagnosis. Information, advice and support are available for the person and their carer to help them live well with dementia.
Content source from: https://www.alzheimers.org.uk/about-dementia