What is dementia?

Choose a question to find out more about dementia.

What does my brain do?

Inside your head is a brilliant brain. It’s hard at work, doing lots of different jobs at once.


Your brain is in charge of everything you think, say and do. It’s what makes you, you.


You can explore the brain to find out more about what’s going on inside your head.

This information was updated in December 2017 and is due for review in December 2019. Please contact us if you would like a version with references.