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A study conducted by Michigan Medicine revealed that individuals who experience type 2 diabetes over an extended period are increasingly prone to experiencing alterations in their brain structure. A group of scientists examined data from 51 middle-aged Pima American Indians who were diagnosed with type 2 diabetes. They employed a set of memory and language assessments known as the NIH Toolbox Cognitive Battery, developed by the National Institutes of Health, alongside MRI scans. These analyses aimed to establish the connection between diabetes, cognitive function, and the composition of the brain. Brain imaging suggested that study participants with longer durations of type 2 diabetes had decreased mean cortical thickness and gray matter volumes, and an increased volume of white matter hyperintensities. The MRI results, researchers say, indicate the negative effects longstanding diabetes may have on brain health outcomes and emphasise the importance of preventing early onset type 2 diabetes.