Stages of Dementia

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Individuals progress through the stages of dementia at different rates. Onset is often subtle; however, there will generally be a continuous and progressive decline. As the disease progresses, the individual will become more dependent and require more direct supervision.

  • Realizes something is wrong but cannot change it — they will hide or cover up the problem
  • Loss of recent memory (short term memory)
  • Mild confusion, unable to concentrate, or short attention span
  • Mild communication problems
  • Impaired judgment, makes poor decisions
  • Personality and behavior changes
  • Depression
  • Loses interest in people or activities
  • Pays less attention to grooming and hygiene
  • Delusions



Lake Region State College. “Training for Caregivers of Individuals with Dementia.” North Dakota Department of Human Services Aging Services Division, Jan. 2006,

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