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Type 3 Diabetes Shows How Blood Sugar Levels Affect the Brain

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Type 3 Diabetes Shows How Blood Sugar Affects Brain

Business Honor
13 December, 2025

Type 3 diabetes explains how poor insulin use in the brain can harm memory and increase dementia risk.

A recent study has focused on type 3 diabetes, which is a particular kind of insulin resistance develops in the brain. As it is not a standard medical term at present, scientists are increasingly using it to find out how the blood sugar levels impact brain health, especially in context of dementia, like Alzheimer's disease.

Diabetes is divided into two types: Type 1, which is an immune condition, and Type 2, which is typically associated with lifestyle issues that produce insulin resistance. The idea of type 3 diabetes depends on issues with insulin transmission in the brain. In this situation, brain cells have problems responding to insulin, which means they are unable to utilize glucose, the energy source needed to function. This can happen even if a person's blood sugar levels seem to be normal, leading to memory and cognitive issues.

According to research, those who have diabetes have a much greater chance of developing dementia. Based on studies, developing diabetes increases the chance of dementia by around 59% when compared with those without the disease. This highlights the importance of blood sugar levels for brain health. High glucose levels may damage blood vessels in both the body and the brain, reducing the flow of oxygen and nutrients to areas important to memory and cognition.

Tracking and controlling blood sugar levels is important for supporting brain function. High glucose levels can harm both blood vessels and brain cells, causing cognitive loss. Even those with the condition, who have naturally higher levels, may experience difficulty thinking and remembering. Thus, knowing about type 3 diabetes is important for dealing with diabetes and its impact on brain function.