Question

In 2013, an estimated _____ million adults in the united states had alzheimer disease.

Answer 1

6 million adults had Alzheimer’s disease in 2013.

Answer 2

In 2013, an estimated 5.7 million adults in the United States had alzheimer disease.

Step-by-step explanation:

Alzheimer's disease is the most common cause of dementia and causes destruction of gray brain tissue and atrophy of the brain. The disease also damages the chemical systems of the brain. Alzheimer's disease, like most other dementing diseases, occurs primarily in the elderly.

The disease was named after the German psychiatrist Alois Alzheimer, who first described the disease in 1906. Alzheimer's disease destroys a person's memory and eventually other mental abilities, as well as physical and speech abilities.