Some Alzheimer's Risk Factors May Be Controllable

Dementia affects about five to seven percent of the population, and Alzheimer's cases represent about 60 percent of that total. While estimates vary, roughly 5 million Americans are thought to have the disease, according to the National Institute on Aging.

There is no cure for Alzheimer's, and it is the sixth-leading cause of death in the United States, according to the Centers for Disease Control and Prevention. But there may be steps you can take to reduce your risk.

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