What is dementia?

We explain more about what dementia is, how it affects people and how this might impact on your life.

Your brain is the most complex part of your body. It’s where we make process our sight, sound, touch and smell, helping you to make sense of the world around you. It’s where memories are stored, emotions are felt, problems are solved, and decisions are made. It’s also the control centre for everything you say and do and for everything your body does. Your brain is the part of your body that makes you, you.

Dementia affects the way our brains work, it usually affects older people and is caused by different diseases. Use the menu below to find out more about dementia.

Explore the brain to find out more about how your brain works and test the different lobes of your brain by playing our brain games.

This information was updated in November 2021 and is due for review in November 2023. Please contact us if you would like a version with references.