Dementia

Definition

Dementia is a general loss of mental abilities. It can include a loss of ability to think, reason, learn, and understand. To be considered dementia, these mental losses must be severe enough to interfere with day-to-day activities. Dementia must also have:
  • Memory problems
  • Mental loss that is severe enough to cause problems with one or more of the following:
    • Language
    • Visuospatial function
    • Executive function—foresight, planning, anticipation, and insight
    • Praxis—learned motor skills
Some Areas of the Brain Affected by Dementia
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Causes

Causes of dementia include:

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