Alzheimer's Disease
"Researchers have found many genes that increase the risk of Alzheimer’s. In fact, in 2022 researchers identified 31 new genes that appear to affect biological processes known to be at play in Alzheimer’s disease."
"Alzheimer’s is the most common cause of dementia, accounting for an estimated 60% to 80% of cases. Most individuals also have the brain changes of one or more other causes of dementia."
"About 1 in 9 people (10.8%) age 65 and older has Alzheimer’s dementia"
"A family history of Alzheimer’s is not necessary for an individual to develop the disease. However, individuals who have or had a parent or sibling (first-degree relative) with Alzheimer’s are more likely to develop the disease than those who do not have a first-degree relative with Alzheimer’s."
"People younger than 65 can also develop Alzheimer’s dementia. Although prevalence studies of younger- onset dementia in the United States are limited, researchers believe about 110 of every 100,000 people ages 30-64 years, or about 200,000 Americans in total, have younger-onset dementia."
"Of the 6.7 million people
age 65 and older with Alzheimer’s dementia in the United States, 4.1 million are women and 2.6 million are men. This represents 12% of women and 9% of men age 65 and older in the United States."
"The percentage of people with Alzheimer’s dementia increases with age: 5.0% of people age 65 to 74,
13.1% of people age 75 to 84, and 33.3% of people
age 85 and older have Alzheimer’s dementia."
"An estimated 6.7 million Americans age 65 and older
are living with Alzheimer’s dementia in 2023. Seventy-three percent are age 75 or older"
"Study found that the estimated lifetime risk for Alzheimer’s dementia at age 45 was approximately 1 in 5 (20%) for women and 1 in 10 (10%) for men. The risks for both sexes were slightly higher at age 65."
"Almost two-thirds of Americans with Alzheimer’s dementia are women."