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by EMMA WITHROW AND MORGAN STEPHENS | Fact Check Team
WASHINGTON (TNND) — New research is shedding light on both who may be at higher risk for dementia and how quickly cases are growing across the U.S.
Type 1 Diabetes and Dementia Risk
A study published in Neurology and led by researchers at Boston University School of Public Health analyzed nearly 284,000 U.S. adults over age 50.
The findings show:
That puts people with type 1 diabetes at nearly three times the risk of developing dementia compared to those without diabetes. Researchers stress this is a correlation, not causation.
Possible links include blood vessel damage, chronic inflammation, and insulin-related changes in the brain. A debated theory connecting Alzheimer’s to insulin resistance, sometimes called “type 3 diabetes”, remains unproven.
Alzheimer’s vs. Dementia
Alzheimer’s is a specific brain disease, while dementia is a broader category of symptoms. All Alzheimer’s cases lead to dementia, but not all dementia is Alzheimer’s.
Cases Are Climbing
According to the Alzheimer’s Association:
Research in Nature projects new dementia cases could reach 1 million per year by 2060.
Where Treatment Stands
There’s still no cure, but treatment is evolving. Researchers say care now focuses on:
Bottom Line
Dementia cases are rising, and emerging research suggests risk factors like type 1 diabetes may play a bigger role than previously understood.
At the same time, while treatments are improving, a cure remains out of reach, for now.
2026 Sinclair, Inc.
