Any increase in blood sugar levels is linked to an increased risk of developing dementia. Researchers speculate that this may be because high blood sugar levels are causing more vascular disease or because of insulin resistance. There’s no direct proof that reducing blood sugar level reduces dementia risk. However, there are many reasons to keep glucose levels lower. Excess blood sugar can lead to a variety of health problems including heart, eye, kidney, and nerve disease. Heart disease is linked to vascular dementia, caused by narrowed blood vessels in the brain. Shifting to a healthier diet can help.
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