Dementia describes a group of disorders characterized by difficulties in thinking, remembering, and reasoning. Alzheimer’s disease is the most common type of cognitive decline.According to the Centers for Disease Control and Prevention (CDC), at least 5 million people live with Alzheimer’s disease and related dementias in the United States.
As the population ages, experts expect this number to increase significantly.Although scientists do not know the precise biological cause of Alzheimer’s disease, they know that some lifestyle factors increase a person’s risk of developing dementia.