About 44 million people worldwide have Alzheimer’s or a related dementia. Just 1 in 4 people with Alzheimer's disease has been diagnosed. Alzheimer’s and dementia is most prevalent in Western Europe. North America is not far behind. Alzheimer’s is least common in Sub-Saharan Africa. Alzheimer’s and different dementias are the top reasons for inabilities in later life. 1-in-9 Americans over the age of 65 have Alzheimer’s disease. 33% of Americans over 85 are affected with the disease. 5.3 million Americans are living with the disease. Alzheimer's disease is the sixth leading cause of death in America. The average life expectancy after diagnosis is 4-to-8 years. 2-in-3 individuals with Alzheimers’s are women. African American and Hispanic Americans
