Diabetes is a chronic condition in which the body cannot properly convert food into energy. People who have diabetes often feel tired, hungry, and thirsty. This happens because their bodies do not make insulin, do not use insulin properly, or both. In turn, this causes glucose to build up in the blood instead of moving into the cells. Some people with diabetes may also lose weight, urinate often, or have trouble with their eyes. Over time, the high blood glucose levels caused by diabetes can lead to several health problems and complications. Effectively managing diabetes is critical to help minimize the risks of future complications.