Prevalence
According to the World Health Organization, approximately 50 million people around the world have dementia. Around 60 percent of the cases are in low-income and middle-income nations. There are almost 10 million new cases each year, mostly in people over 60 years old.
Alzheimer’s disease is the most common form of dementia. There are approximately 40 million people with this disease worldwide. The number in the United States is around 5 million people. All of these figures suggest that dementia and Alzheimer’s are relatively common health issues in the elderly. [3.1] [3.2]
