The new estimate is based on a new study that found a higher lifetime risk than previously thought: After age 55, people have up to a 4 in 10 chance of eventually developing dementia — if they

A groundbreaking study reveals that Americans over 55 now face a 42% risk of developing dementia, significantly higher than previous estimates. With cases expected to double by 2060, this poses major challenges and calls for urgent action in public health policies.

A new study found that dementia cases in the United States are projected to double from more than 500,000 in 2020 to about 1 million by 2050.