Dementia is a syndrome (a group of related symptoms) associated with an ongoing decline of brain functioning. This may include problems with:
There are many different causes of dementia. People often get confused about the difference between Alzheimer's disease and dementia.
According to the Alzheimer's Society there are around 850,000 people in the UK with dementia. One in 14 people over 65 will develop dementia, and the condition affects 1 in 6 people over 80.
The number of people with dementia is increasing because people are living longer. It is estimated that by 2025, the number of people with dementia in the UK will have increased to around 1 million.
Although there is no cure for dementia at present, if it's diagnosed in the early stages, there are ways you can slow it down and maintain mental function. With treatment and support, many people are able to lead active, fulfilled lives and that is perhaps why a quick word search of ‘dementia’ on the Charity Commission website will throw up over 100 charities working within this field.
(https://www.nhs.uk/conditions/dementia/about/ June 2017)