How Does Glucose Damage Blood Vessels

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How Diabetes Harms The Brain

TIME Health For more, visit TIME Health. When blood sugar levels start to climb in diabetes, a number of body systems are harmed—and that list includes the brain, since studies have linked diabetes with a higher risk of stroke and dementia. Now, a new study published in the journal Neurology reports that changes in blood vessel activity in the brains of diabetics may lead to drops in cognitive functions and their ability to perform daily activities. Dr. Vera Novak, associate professor of neurology at Harvard Medical School and Beth Israel Deaconess Medical Center, and her colleagues followed a group of 65 older people. About half had type 2 diabetes, and half did not. After two years, the diabetic patients had lower scores on cognitive tests compared to when they began, while people without diabetes showed little change on the tests. MORE: The Strange Way a Diabetes Drug May Help Skin Scars What drove the decline, says Novak, were changes in the brains of the diabetic patients. Diabetes can cause blood vessels to be less responsive to the ebb and flow of demand in different parts of the brain. Normally, flexible vessels will swell slightly to increase blood flow and oxygen to are Continue reading >>

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  1. TheLonelyScientist


    Why does high blood glucose damage our bodies? (self.diabetes)
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  2. Duganz

    Over time it increases the size of blood cells leading to higher clotting, blood pressure, etc. This damages the small vessels first, like our toes or eyes. The blood flow slows and nerve damage begins.
    Also, ketoacidosis.

  3. WaldoWal

    If this is the case, seems like a good old fashion "bleeding" would be good for us, no?

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