A dementia of the Alzheimer’s type beginning before age 65.
An often progressive mental deterioration occurring when the individual is quite young, in the 30s or 40s.
Mental degeneration affecting adults of around 40-60 years of age (dated).
Dementia beginning in middle age, usually resulting from cerebral arteriosclerosis or Alzheimer’s disease. The symptoms are apathy, loss of memory, and disturbances of speech and gait.
Presenile dementia, a form of cognitive decline in brain function, manifests in individuals below the age of 65, whereas the majority of dementia cases impact those over 65. Potential factors contributing to presenile dementia encompass brain tissue damage due to conditions like AIDS or alcohol dependency, severe vitamin deficiencies as seen in Wernicke–Korsakoff syndrome or pernicious anemia, significant head injuries, or Alzheimer’s disease.
Whenever feasible, the root cause of presenile dementia is addressed. While brain tissue damage remains irreversible, pharmacological interventions can aid in alleviating correlated symptoms like depression.