A member asked:

What are the main causes of alzheimer's?

5 doctors weighed in across 3 answers

Nobody knows: In most cases, it is not clear what are the causes of alzheimer's disease. In some cases, the cause is an abnormal gene but that is true in only about 5% of people with alzheimer's disease.

Answered 6/20/2015

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See below: The true cause of alzheimer's is unknown, but the disease correlates with aging, prior head trauma, certain genetics on occasion, cardiovascular risk factors, educational level, level of exercise habits, level of socialization, and perhaps an association with homocysteine elevation.

Answered 2/19/2013

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Dr. answered

Multiple factors: Scientists believe that for most people, Alzheimer's is caused by a combination of genetic, lifestyle and environmental factors that affect the brain over time. Less than 5 percent of the time, Alzheimer's is caused by specific genetic changes that virtually guarantee a person will develop the disease. http://www.mayoclinic.org/diseases-conditions/alzheimers-disease/symptoms-causes/dxc-20167103

Answered 10/15/2016

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