Has a friend or relative been diagnosed with dementia? What are her/his symptoms?
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What's the difference between Alzheimer's disease and dementia?
Dementia is a syndrome characterized by:
impairment in memory,
impairment in another area of thinking such as the ability to organize thoughts and reason, the ability to use language, or the ability to see accurately the visual world (not because of eye disease), and
these impairments are severe enough to cause a decline in the patient's usual level of functioning.
Although some kinds of memory loss are normal parts of aging, the changes due to aging are not severe enough to interfere with the level of function. Although many different diseases can cause dementia, Alzheimer's disease is the most common cause for dementia in the United States and in most countries in the world.