Infographic : Alzheimer's disease

Alzheimer's disease is a progressive condition, which means the symptoms develop gradually over many years and eventually become more severe. It affects multiple brain functions.

The first sign of Alzheimer's disease is usually minor memory problems.


For example, this could be forgetting about recent conversations or events, and forgetting the names of places and objects.


As the condition develops, memory problems become more severe and further symptoms can develop, such as:

  • confusion, disorientation and getting lost in familiar places
  • difficulty planning or making decisions
  • problems with speech and language
  • problems moving around without assistance or performing self-care tasks
  • personality changes, such as becoming aggressive, demanding and suspicious of others
  • hallucinations (seeing or hearing things that are not there) and delusions (believing things that are untrue)
  • low mood or anxiety
  • Read more about the symptoms of Alzheimer's disease.

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