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Type 1 diabetes linked to significantly higher dementia risk, large U.S. study finds

March 19, 2026

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A large U.S. study has linked type 1 diabetes to increased dementia risk. Image credit: tolgart/Getty Images

A new study suggests people with type 1 diabetes may be nearly three times as likely to develop dementia compared with people without diabetes.
Similarly, people with type 2 diabetes may have roughly twice the risk of dementia compared with those without diabetes.
However, the study found an association rather than proof of causation, meaning diabetes was linked to dementia risk but was…

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