What’s to know about Alzheimer’s disease?

Alzheimer’s disease is a neurological disorder in which the death of brain cells causes memory loss and cognitive decline.

It is the most common type of dementia, accounting for 60 to 80 percent of cases of dementia in the United States.

In 2013, 6.8 million people in the U.S. had been diagnosed with dementia. Of these, 5 million had a diagnosis of Alzheimer’s. By 2050, the numbers are expected to double.

Alzheimer’s is a neurodegenerative disease. At first, symptoms are mild, but they become more severe over time.

Fast facts on Alzheimer’s disease