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Dementia (Loss of Memory) Dementia is the loss of reasoning, memory, and other mental abilities. Dementia may be caused by irreversible causes such as Alzheimer's disease, Parkinson's dementia, Lewy body dementia, and vascular dementia. There are also treatable causes of dementia such as infections, head injury, normal hydrocephalus, and metabolic and hormonal disorders.
Early symptoms of dementia include forgetting appointments and names, losing things, difficulties performing familiar tasks (driving, cooking, household chores), personality changes, mood swings, paranoia, and suspiciousness. There are 7 types of dementia.
A variety of tests (blood tests, scans, assessment of family history) may be used to diagnose dementia. Treatment may include medication and behavioral therapy.