alzheimer's disease
Học thuậtThân thiện
Definition
- Noun:
- A progressive neurological disorder: Alzheimer's disease is a specific, irreversible brain disease that causes a continuous decline in memory, thinking, and behavior.
- A form of dementia: It is the most common cause of dementia, a general term for loss of cognitive abilities severe enough to interfere with daily life.
Usage Examples
- Noun:
- The most common early symptom of Alzheimer's disease is difficulty remembering recent events.
- Research is ongoing to find a cure for Alzheimer's disease.
- Caring for a loved one with Alzheimer's disease can be challenging.
Advanced Usage
- "to be diagnosed with Alzheimer's disease": to receive a formal medical identification of having the condition.
- He was diagnosed with Alzheimer's disease at the age of 68.
- "the progression of Alzheimer's disease": the course or development of the disease over time.
- Medications may help slow the progression of Alzheimer's disease.
Variants and Related Words
- Alzheimer's (noun, informal): A common shortened form of "Alzheimer's disease."
- She has been living with Alzheimer's for five years.
- Dementia (noun): The broader category of cognitive decline syndromes of which Alzheimer's disease is a specific type.
Synonyms
- Senile dementia of the Alzheimer type (SDAT): A more clinical, older term.
- Alzheimer's: The common abbreviated form.
Notes on Meaning
This term refers specifically to the disease pathology in the brain, characterized by plaques and tangles. It is not a normal part of aging, though age is the greatest known risk factor. The definition distinguishes it by its potential for earlier onset (presenile) compared to other forms of dementia.
Noun
- a progressive form of presenile dementia that is similar to senile dementia except that it usually starts in the 40s or 50s; first symptoms are impaired memory which is followed by impaired thought and speech and finally complete helplessness