Their results, published in Nature Aging on Nov. 11, suggest that environmental factors related to socioeconomic status might accelerate brain aging. There are many things that can be a factor.”Researchers also had access to patient data on cardiovascular health, mental health and history of traumatic brain injury. “This amazingly rich data set gave us an opportunity to learn about individuals with multiple scans across long periods of time. These images demonstrate that the decrease in functional segregation seems to be operating on paths that are independent of other indicators of dementia. The research was supported by the National Institutes of Health (grant R01AG063930) and the James S. McDonnell Foundation.