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Types of dementia

Dementia is the broad term used to describe a number of different conditions affecting the brain, including Alzheimer's disease. Learn more about the different types of dementia.

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These pages explain what dementia is, including the causes and symptoms, and how it is diagnosed and treated. They also look at the different types of dementia.
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This group of pages describes the symptoms of Alzheimer’s disease, how it is diagnosed, and the factors that can put someone at risk of developing it. We also look at the treatment and support currently available. 

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Creutzfeldt-Jakob disease (CJD) is caused by an abnormally shaped protein called a prion infecting the brain.

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These pages explains what young-onset dementia is, including the causes and symptoms, and how it is diagnosed and treated. 

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Learn more about Alcohol-related brain damage (ARBD) and read practical tips for carers supporting someone with the condition.

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Read our introduction to dementia in people with learning disabilities. This section includes details of why someone with a learning disability is more likely to develop dementia, and suggestions how they can live well with the condition. 

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Alzheimer's disease is the most common cause of dementia, but there are many rarer diseases and conditions that can lead to dementia, dementia-like symptoms or mild cognitive impairment.