A new study conducted in Ireland has revealed that having type 2 diabetes in middle age can increase the risk of dementia by four times.
Researchers suspect that diabetes causes dementia by causing the accumulation of harmful proteins in the brain.
Researchers from Galway National University in Ireland followed nearly 5,000 people aged 55 and over for a decade to see if they developed dementia, the Daily Mail reported.
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At the end of the study, people with diabetes at the age of 55 had four times the risk of dementia after the age of 65.
According to the study results, diabetes and high blood pressure were the biggest risks for dementia in 55-year-olds.
For 65-year-olds, having cardiovascular disease, such as a previous heart attack or angina, was the biggest risk linked to dementia.
People 70 and older had the greatest risk of dementia if they had previously had a stroke or diabetes.
Professor Emer McGrath, from Galway National University, who led the research, said:
“Our study shows that people with diabetes in their 50s are more likely to develop dementia in their 60s. This is especially important, because most of these people are four times more likely to have dementia in the decade after retirement. When he retires, stops working, and starts enjoying life without worry, no one wants to be diagnosed with a disease like Alzheimer’s.”
The study, published in the journal Neurology, showed how the factors that can cause dementia change at different ages.