While I can grasp the idea that low blood sugar means “low immediate energy supply”, how come that too much sugar in the blood can cause harm?
In: 33
Glucose links to proteins, lipids, and DNA, which makes them stop working. That’s a big part of why hyperglycemia causes people to go blind, have other problems associated with nerves, have vascular problems, and have kidney problems.
https://en.m.wikipedia.org/wiki/Glycation
In addition, high blood sugar is more energy for bacteria, so they are at higher risk of infection.
Also, hyperglycemia is often caused by diabetes. In diabetes, the low amount of insulin or low sensibility to insulin makes that your liver believes you are in hypoglycemia while you’re in hyperglycemia, and your liver is going to break down your glycogen, proteins, and fat into glucose. So you’ll also get the problem of losing proteins.
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