In a large population-based study of randomly selected participants in Germany, researchers found that mild cognitive impairment (MCI) occurred twice more often in individuals diagnosed with diabetes mellitus type 2. Interestingly, this strong association was only observed in middle-aged participants (50-65 years), whereas in older participants (66-80 years) the association vanished. This study is published in the Journal of Alzheimer’s Disease.


The concept of MCI describes an intermediate state between normal cognitive aging and dementia. Although people with MCI have a higher dementia risk, very few actually develop dementia. In fact, many persons with MCI convert back to a cognitively normal state. This transitional — and therefore possibly modifiable — characteristic makes the concept of MCI a promising approach in the development of prevention strategies.

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