The document discusses glucose and diabetes. It notes that glucose comes from food and the liver and is the main fuel for cells like brain cells. The pancreas produces insulin which moves glucose from the bloodstream into cells. Type 2 diabetes occurs when cells become resistant to insulin and the pancreas cannot produce enough to overcome this. Risk factors for type 2 diabetes include weight, inactivity, age, race, and certain medical conditions. Type 1 diabetes is an autoimmune disorder with genetic and environmental risk factors. Symptoms of diabetes include frequent urination, thirst, hunger, weight loss and fatigue. Complications can include damage to cardiovascular, nerve, kidney and eye systems if diabetes is not managed. The document provides tips for managing diabetes lifestyle