Probably not just in older women?
https://www.cnn.com/2020/06/23/health/belly-fat-dementia-link-wellness/index.html
(CNN)For older adults, your current belly size could be a key indicator in whether you develop dementia within the next decade or two. For women that risk is particularly high.
For women in later adulthood, above average belly fat can lead to a 39% increased risk of dementia within 15 years compared with those who have a normal waist circumference, according to a study published Tuesday in the International Journal of Epidemiology.