Nearly one in 10 Americans over 65 has dementia, according to the first nationally representative study of cognitive impairment in more than 20 years.
The study also finds that another 22% have mild cognitive impairment. People with dementia and mild cognitive impairment are more likely to be older, have lower levels of education, and to be Black or Hispanic. Men and women have similar rates of dementia and mild cognitive impairment.
