Dementia affects so many people, but there's still so much misunderstanding about the condition. Here we've explained the basics.
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.
Most people with dementia have Alzheimer’s disease or vascular dementia but there are other types too.
Why does it happen?
Dementia is not something that just happens to everyone as they get older. It is caused by different illnesses.
These illnesses are diseases that affect different parts of the brain, so they affect people in different ways.
At the moment we don’t know why one person may get one of these diseases while another person may not. Doctors and scientists are working hard to find out more about dementia.