A condition where the blood circulates through the arteries with too much force. High blood pressure tires the heart, harms the arteries, and increases the risk of heart attack, stroke, and kidney problems. Hormone A chemical that special cells in the body release to help other cells work. For example, insulin is a hormone made in the pancreas to help the body use glucose as energy. Hyperglycemia See High blood glucose.
Hypertension See High blood pressure.
Hypoglycemia See Low blood glucose. A condition of being unable to keep an erect penis and ejaculate. Some men who have had diabetes a long time become impotent if their nerves have become damaged. A contagious viral illness that strikes quickly and severely. Signs include high fever, chills, body aches, runny nose, sore throat, and headache.