Dawn of a revolution. Bill Gates as pictured in his freshman yearbook. Gates attended Harvard from 1973 to 1975. Microsoft founder Bill Gates, who attended Harvard, returns to campus this weekend for a question-and-answer session as part of the launch of The Harvard Campaign.
Adults. A normal blood sugar level is between 72 mg/dL and 108 mg/dL (4 to 6 mmol/L) for a healthy person. The concentration of glucose in the blood of a healthy person in the morning on an empty stomach is between 68 mg/dL and 108 mg/dL (3.8 and 6.0 mmol/L).lood sugar level (or blood sugar concentration) is the amount of glucose (a source of energy) present in your blood at any given time. A normal blood glucose level for a healthy person is somewhere between 72 mg/dL (3.8 to 4 mmol/L) and 108 mg/dL (5.8 to 6 mmol/L).
Blood sugar levels indicate the amount of sugar or glucose absorbed into the bloodstream. Blood sugar levels that are either too high or too low can cause death. Diabetics and those with certain conditions such as hypoglycemia must maintain their blood sugar levels and monitor them closely. The normal blood sugar range is 70 to 100. A diabetic can have a level of 60 to 120 and still feel fine. A fatally high blood sugar level is anything above 550. It's possible for an adult to reach even higher levels before exhibiting any symptoms or problems. When the level reaches 600, the person develops hyperosmolar syndrome, which can cause diabetic coma and death.