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
5.3k views
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
5.3k views
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
929 views
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