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Alzheimer’s disease symptoms

The symptoms of Alzheimer's disease can be hard to distinguish from the normal signs of ageing in the early stages of the disease affecting the brain.

The disease tends to first affect the part of the brain dealing with memory and speech.

Mild Alzheimer’s disease

Mild Alzheimer’s disease can result in forgetfulness, mood swings and speech problems.

Moderate Alzheimer’s disease

As the disease progresses, symptoms of moderate Alzheimer’s disease include:

  • Disorientation
  • Spatial problems, judging distances, getting lost
  • Vision problems or hallucinations
  • Delusions and false memories
  • Obsessive or repetitive behaviour
  • Sleep problems
  • Incontinence
  • Memory problems with recent events
  • Language and speech problems
  • Mood swings, frustration or depression

Severe Alzheimer's disease

With severe Alzheimer's disease, earlier symptoms may worsen and new ones may develop, including:

If you notice any of these Alzheimer’s disease symptoms

If you notice any of these symptoms, seek medical advice. These signs can be linked to many other health problems, many of which can be treated. Even if your doctor does diagnose Alzheimer’s disease, there are ways to help ease some of the symptoms.

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WebMD Medical Reference

Medically Reviewed by Dr Rob Hicks on August 24, 2015

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