Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

n. the concentration of glucose in the blood, expressed in milligrams per deciliter. Insulin and glucagon are two pancreatic horrmones which help regulate it. With blood glucose being essential for normal brain and body function, an abnormal rise or fall would indicate disease. See diabetes- hyperglycemia- hypoglycemia.

BLOOD SUGAR: "In a fasting blood sugar test, the normal level for a healthy human being would read at a range of 70-110 mg glucose/dL."

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