Our brains control almost everything we think, feel, say and do. They also store our memories for us.
There are illnesses that stop a person’s brain from working properly. When a person has one of these illnesses, they may have problems remembering, thinking and speaking. They might say or do things that seem strange to others, and find it harder to do everyday things. They may not seem like the person they used to be.
Doctors use the word dementia to describe these different problems.
The word dementia is used to describe a group of symptoms – these include memory loss, confusion, mood changes and communication difficulties. Dementia is caused by diseases that affect the brain. Alzheimer’s disease is the most common cause of dementia.
Mild cognitive impairment or MCI is a condition where people experience memory and thinking problems. It is not a type of dementia but for some people it can lead to the development of diseases like Alzheimer’s.
Posterior cortical atrophy, also known as PCA, is an uncommon type of dementia that usually begins by affecting a person’s vision.
Primary progressive aphasia (PPA) is a rare type of dementia. It is caused by damage to parts of the brain that control our language, personality, emotions and behaviour.
Frontotemporal dementia also called FTD, is a rarer type of dementia caused by a build up of proteins, tau, FUS and TDP-43, in the frontal and temporal lobes of the brain.
All about dementia
This information is for anyone who wants to know more about dementia and the diseases that cause it. This includes people living with dementia, their carers, friends and family.