What is the age that late-onset Alzheimer's is?

How common is late-onset Alzheimer's disease?

Late-onset Alzheimer’s is the most common type of the disease. It affects people 65 years and older. It can run in families. Researchers have not yet identified a specific gene that causes it.

Is there an upper age limit for Alzheimer’s? The rare form of Alzheimer's that strikes people younger than 65 is called early-onset Alzheimer's. About 5% to 66% of those with Alzheimer’s disorder develop symptoms before the age 65. If 4 million Americans have Alzheimer’s, that means around 200,000-240,000 people may have the early-onset version of the disease.

What is the difference in early-onset Alzheimer and late-onset Alzheimer?

Both early and late-onset Alzheimer’s share many of the same symptoms. However, early-onset occurs before 65 years old and late-onset after 65. There are two types of early-onset Alzheimer's: familial and sporadic. Late-onset, on the other hand, is more common.

Is late-onset Alzheimer's genetic?

Researchers have yet to find a gene that causes late-onset Alzheimer’s disease. A person can increase their risk by having an apolipoprotein E gene (APOE) on chromosome 19.