Info & advice » What is Dementia?
Dementia is a group of conditions that affect the normal functions of the brain. It is a progressive and irreversible destruction of brain cells leading to loss of memory, confusion, personality and behaviour change.
There are over 100 different dementias of which Alzheimer’s is the most common form. The causes of Alzheimer’s disease are largely unknown and there is no known cure. The onset is gradual and the early signs are subtle.
The second most common dementia is Vascular dementia which is triggered by a series of small strokes in the brain. This type of dementia usually progresses in a step like manner with periods of stability or improvement. People with vascular dementia often have insight to their memory problems and this can cause anger and frustration in them.
There are currently 820, 000 people with dementia in the United Kingdom.
Dementia can affect people of any age, but is most common in older people. One in five people over 80 has a form of dementia and one in 20 people over 65 has a form of dementia.
25 Million people, or 42% of the UK population, know a close friend or family member with dementia.