Alzheimer’s is a debilitating disease with no cure and no confirmed way to prevent it. Doctors don’t know exactly how diabetes and Alzheimer’s are connected. But they do know that insulin resistance, high blood sugar or diabetes can harm the brain in several ways. People might be able to reduce their risk of Alzheimer’s disease by attending to the kinds of health behaviors that reduce vascular risk, such as controlling blood pressure, diabetes, and cholesterol.

Insulin resistance and Type 2 diabetes increase the risk of heart disease and stroke. These conditions hurt the heart and blood vessels. Damaged blood vessels in the brain may contribute to Alzheimer’s disease. The brain depends on many different chemicals. Too much insulin may upset the balance of these chemicals. Insulin administered by nasal spray improves memory performance in an Alzheimer’s patient when compared with saline.

Some of these changes may help trigger Alzheimer’s disease. High blood sugar causes inflammation. This may damage brain cells and help Alzheimer’s to develop. Taking steps to prevent or control diabetes may help reduce your risk of Alzheimer’s disease. Preventing or controlling diabetes is good for several reasons, and also because it might contribute to your risk of Alzheimer’s disease.

Alzheimer’s Disease and Diabetes Influences

It is possible that long-term diabetes or its treatment may cause some sort of damage to the brain, it is also possible that the diabetes is not so much the cause of the Alzheimer’s, but rather that diabetes and Alzheimer’s each arise from the same environmental exposures and influences. The age of diabetes onset itself might be an important factor in later Alzheimer’s risk.

Exactly how diabetes and Alzheimer’s are linked is not fully understood, but researchers are constantly working and presenting their findings to find the link. One theory is that diabetes may cause blood sugar to accumulate in the brain, which could damage brain cells that ultimately causes Alzheimer’s disease. If diabetes and Alzheimer’s are indeed two different facets of the same disease, then Alzheimer’s could conceivably be treated in a way similar to diabetes.

Alzheimer’s and Insulin

New research indicates that insulin injections may also be a way to treat or prevent Alzheimer’s Disease. Other research has discovered that insulin and its growth factors, which are necessary for the survival of brain cells, contribute to the progression of Alzheimer’s.

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