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Is high blood sugar dangerous?

High blood sugar can be dangerous. When blood sugar levels start to creep up, risk increases for everything from heart and kidney disease to dementia, nerve damage and early death. A person doesn't even have to be officially diagnosed with diabetes to be in trouble. A condition called "insulin resistance," in which your cells prevent insulin from "unlocking" the door so energy in the form of glucose can enter, also increases the risk of heart disease, as does full-blown diabetes.

This content originally appeared on HealthyWomen.org.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.