Your digestive track breaks down the carbohydrates that you eat into glucose — a type of sugar — which gets absorbed into the blood. Insulin is a hormone that helps your body's cells absorb the glucose from the blood and use it or store it for energy. When you have diabetes, your body either doesn't make enough insulin or can't use its own insulin as well as it should, or both. This causes sugars to build up too high in your blood. © AHA
