Dementia

Dementia is a description of the state of a person’s mental function and not a specific disease.

Dementia entails a decline in mental function from a previously higher level that’s severe enough to interfere with daily living. A person with dementia has two or more of these specific difficulties, including a decline in:

• Memory.
• Reasoning.
• Language.
• Coordination.
• Mood.
• Behavior.

Dementia develops when the parts of your brain involved with learning, memory, decision-making or language are affected by infections or diseases. The most common cause of dementia is Alzheimer’s disease.

But other known causes of dementia include:

• Vascular dementia.
• Dementia with Lewy bodies.
• Frontotemporal dementia.
• Mixed dementia.
• Dementia due to Parkinson’s disease.
• Dementia-like conditions due to reversible causes, such as medication side effects or thyroid problems.

What’s the difference between dementia and Alzheimer’s disease?

Dementia is a description of the state of a person’s mental function and not a specific disease. Dementia is an “umbrella category” describing mental decline that’s severe enough to interfere with daily living.

There are many underlying causes of dementia, including Alzheimer’s disease and Parkinson’s disease. Alzheimer’s disease is the most common underlying cause of dementia.

Who gets dementia?

Dementia is considered a late-life disease because it tends to develop mostly in people who are older.