GLOSSARY

Blood glucose regulation is the process that keeps blood glucose within a narrow range of about 70–140 mg/dL (3.9–7.8 mmol/L). This balance is vital because the brain depends almost entirely on glucose, using about 120 grams of it every day.

Main Hormones

• Glucose-lowering: insulin is the only major hormone that lowers blood glucose.
• Glucose-raising (counter-regulatory hormones): glucagon and adrenaline (fast action) and cortisol and growth hormone (slow action, over several hours).

Main Organs