What Is Alzheimer S Disease Caused By
Researchers believe that alzheimer s disease and other dementias are likely caused by multiple factors including genetics lifestyle and environment.
What is alzheimer s disease caused by. Scientists don t yet fully understand what causes alzheimer s disease in most people. Everyone has apoe which helps carry cholesterol in the blood. While some risk factors age family history and heredity can t be changed emerging evidence suggests there may be other factors we can influence. The importance of any one of these factors in increasing or decreasing the risk of alzheimer s disease may differ from person to person.
There probably is not one single cause but several factors that affect each person differently. Changes in the brain can begin years before the first symptoms appear. Research is still being conducted to learn a lot more about what causes alzheimer s disease. Scientists believe that for most people alzheimer s disease is caused by a combination of genetic lifestyle and environmental factors that affect the brain over time.
Family history researchers believe that genetics may play a role in developing alzheimer s disease. The causes probably include a combination of age related changes in the brain along with genetic environmental and lifestyle factors. The apoe gene has three forms. One risk factor for this type of alzheimer s disease is a protein called apolipoprotein e apoe.
Age is the best known risk factor for alzheimer s disease. Health environmental and lifestyle factors that may contribute to alzheimer s disease. Less than 1 percent of the time alzheimer s is caused by specific genetic changes that virtually guarantee a person will develop the disease.