2 What causes dementia?

Myth: getting older means you will get dementia.

Dementia is the result of brain cells being damaged in an ongoing way. This happens as a result of a number of different diseases (sometimes referred to as ‘types’ of dementia). It is not an inevitable part of ageing.

Here are some of the more common diseases that cause dementia:

Common diseases that cause dementia

(Source – Social Care Institute for Excellence 2009)

The term ‘Mixed’ is used when dementia has more than one cause. For example a person may have both Alzheimer’s disease and Vascular dementia.

Other less common causes of dementia are:

  • Huntington’s disease
  • Creutzfeldt-Jakob Disease (CJD)
  • AIDS related dementia
  • Korsakoffs Syndrome

People with learning disabilities have a higher risk of developing dementia.

Task 1: Find out about one of the types of dementia and record what you have learnt in your notebook.

There are many places you can find this information. The Alzheimer’s Society produces factsheets, which cover a wide range of dementia-related topics. These are freely available on the Alzheimer’s Society website at www.alzheimers.org.uk/site/scripts/documents.php?categoryID=200137

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