“Alzheimer’s disease is the most common form of dementia, affecting millions worldwide.  In the U.S., over 7 million people aged 65 and older currently live with Alzheimer’s, and this number is projected to nearly double by 2050.   Globally, more than 55 million people live with dementia, with Alzheimer’s accounting for 60–80% of cases.  Women represent approximately two-thirds of U.S. Alzheimer’s patients, reflecting longer lifespans and genetic factors.  Dementia prevalence doubles every five years after age 65, affecting one in three by age 85.”

revivalresearch.org (Alzheimer’s and Brain Awareness Month 2025: Facts and Support)