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The Truth About Dementia

There's more to dementia than Alzheimer's disease. Find out how much you know with this quiz.

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The Truth About Dementia
The Truth About Dementia
Question 1 of 20 Correct

True or false: Dementia is a normal part of aging.

Correct! Sorry, that’s incorrect.

The correct answer is: This is false. Most older people do not get dementia.

The Truth About Dementia
Question 2 of 20 Correct

What percentage of dementia cases is caused by Alzheimer's disease?

Correct! Sorry, that’s incorrect.

The correct answer is: Alzheimer's disease causes roughly 50 to 70 percent of all dementia. However, a number of other disorders can lead to dementia -- some of which are potentially reversible.

The Truth About Dementia
Question 3 of 20 Correct

Which of these problems with the brain can lead to dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above. In addition, an insufficient blood flow to the brain can cause different forms of dementia.

The Truth About Dementia
Question 4 of 20 Correct

True or false: There are more than 50 causes of dementia.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Among the many causes of dementia are neurological disorders such as Alzheimer's disease, vascular disorders such as multi-infarct disease; inherited disorders such as Huntington's disease and infections such as HIV.

The Truth About Dementia
Question 5 of 20 Correct

Which of the following is true of dementia pugilistica?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above. Dementia pugilistica, or boxer's syndrome, is also called chronic traumatic encephalopathy and punch drunk syndrome. This condition is common among boxers and typically develops about 16 years after the initial head injury.

The Truth About Dementia
Question 6 of 20 Correct

Which of these are symptoms of dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above can be symptoms of dementia, along with poor judgment, problems with motor tasks and trouble with abstract thinking. Talk to your doctor if you're concerned about your risk for dementia.

The Truth About Dementia
Question 7 of 20 Correct

At what age does your risk for dementia start to increase?

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The correct answer is: Your risk for dementia begins to go up at age 65. Being over age 80 increases your risk even more.

The Truth About Dementia
Question 8 of 20 Correct

What percentage of people over the age of 85 have dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: As many as half of people 85 or older suffer from dementia. About 5 percent to 8 percent of all people over 65 have some form of dementia, and this number doubles every five years above that age.

The Truth About Dementia
Question 9 of 20 Correct

What factors besides age raise your risk for dementia?

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The correct answer is: All of the above. These factors may also increase your risk: drug toxicity, heart disease, long-term alcohol abuse, multiple sclerosis, some viruses and stroke.

The Truth About Dementia
Question 10 of 20 Correct

How can you prevent or delay dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: All of the above. Getting regular exercise, watching your blood pressure and controlling your cholesterol can help, too.

The Truth About Dementia
Question 11 of 20 Correct

True or false: In frontotemporal dementia, parts of the brain shrink, causing changes in personality and behavior.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. People with frontotemporal dementia may display unusual behavior, such as a lack of caring or inhibition. Frontotemporal dementia makes up about 5 percent of all dementia cases.

The Truth About Dementia
Question 12 of 20 Correct

Dementia caused by which of the following conditions is considered partially treatable?

Correct! Sorry, that’s incorrect.

The correct answer is: Usually the result of a head injury, a subdural hematoma is an accumulation of blood beneath the outer covering of the brain that results from a broken blood vessel. Dementia caused by subdural hematomas is considered partially treatable.

The Truth About Dementia
Question 13 of 20 Correct

Dementia caused by which of the following conditions are considered non-treatable?

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The correct answer is: All of the above are considered non-treatable causes of dementia, other non-treatable causes of dementia include dementias associated with Parkinson's disease and similar disorders and Creutzfeldt-Jakob disease.

The Truth About Dementia
Question 14 of 20 Correct

True or false: If dementia is caused by high blood pressure or high cholesterol, treating those factors may improve the dementia.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Dementia that's caused by high blood pressure or high cholesterol can be improved with treatment of those conditions.

The Truth About Dementia
Question 15 of 20 Correct

True or false: The most common form of dementia, Alzheimer's disease, is as common in other countries as it is in the U.S.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. As of 2010, an estimated 35.6 million people worldwide were living with dementia. Experts project that by 2050, the number will top more than 115 million people.

The Truth About Dementia
Question 16 of 20 Correct

Which of these are symptoms of dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: None of these are symptoms of dementia. Nor Is depression, although people who are depressed may sometimes appear confused or forgetful.

The Truth About Dementia
Question 17 of 20 Correct

True or false: Although dementia mainly occurs in the elderly, it can affect people of any age.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. Infections and poisoning can lead to dementia in people of any age. Some disorders unique to children can cause dementia as well.

The Truth About Dementia
Question 18 of 20 Correct

Vascular dementia is caused by which of the following conditions?

Correct! Sorry, that’s incorrect.

The correct answer is: Vascular dementia is usually the result of damage that is done to the brain by a stroke, which happens when a blood clot or a hemorrhage cuts off the brain's blood supply. The second most common type of dementia, vascular dementia accounts for slightly more than 20 percent of dementia cases.

The Truth About Dementia
Question 19 of 20 Correct

True or false: People with less education appear to be at higher risk for Alzheimer's and other dementias than those with more schooling.

Correct! Sorry, that’s incorrect.

The correct answer is: This is true. According to the Alzheimer's Association, studies show that having fewer years of education is linked with a greater likelihood of having dementia and a greater risk for of developing dementia.

The Truth About Dementia
Question 20 of 20 Correct

What is mixed dementia?

Correct! Sorry, that’s incorrect.

The correct answer is: It is possible to suffer from more than one type of dementia at the same time. This is a disorder called mixed dementia. Generally, the term refers to simultaneous occurrences of Alzheimer's disease and vascular dementia.

The Truth About Dementia
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