Having a bigger waistline and a high body mass index (BMI) in your 60s may be linked with greater signs of brain aging years later, according to a study published by a leading University of Miami neurologist researcher in the July 24, 2019, online issue of Neurology, the medical journal of the American Academy of Neurology. The study suggests that these factors may accelerate brain aging by at least a decade.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/study-shows-extra-weight-in-60s-may-be-linked-to-brain-thinning-years-later