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Symptoms of low blood sugar include extreme hunger, blurred vision, sweating, nausea and a fast heartbeat. In severe cases, the patient may experience stroke, seizure and loss of consciousness, notes WebMD.


Someone with high blood sugar has a higher-than-normal amount of glucose in the blood, states the American Diabetes Association. Blood sugar increases when someone does not make enough insulin or does not have a normal response to insulin.


A normal blood sugar level is less than 100 milligrams per deciliter when fasting and 140 milligrams per deciliter two hours after eating a meal. A milligram per deciliter is a unit of measure that shows the concentration of a substance in a specific amount of fluid.


Low blood sugar, also known as hypoglycemia, is caused by a sharp spike and then rapid fall of blood glucose after a high-carbohydrate meal or when blood glucose falls due to fasting for more than eight hours. Some diabetes medications also cause hypoglycemia, according...


Low blood sugar, or hypoglycemia, affects the body’s normal functions and can lead to seizures or nervous system damage in severe cases, according to Healthline. Symptoms include blurry vision, fast heartbeat, sudden nervousness or mood changes, and unexplained fatigue.


Symptoms of low blood sugar, which is also called hypoglycemia, generally occur when an individual's blood sugar dips to 70 mg/dL or lower, according to WebMD. Hypoglycemia occurs when diabetics do not have enough sugar in their bodies to use for fuel; some instances of...


Low blood sugar is defined as the glucose levels in blood dropping below 70 milligrams per deciliter, impacting the body's ability to function normally, according to Healthline. Also referred to as hypoglycemia, low blood sugar is typically accompanied by symptoms such ...