When the body metabolizes (i.e., breaks down) molecules of carbohydrates, it converts it into blood sugar. Blood sugar or glucose is the fuel the body needs to carry out its day to day functions. Compared to fats and proteins, carbohydrates are easier to break down.
Glucose is used as rapidly as it is produced. It enables the brain, nervous system, muscles and other organs to function. The body can also store the energy it takes from metabolizing carbohydrates. When it does so, a compound called glycogen is made. Glycogen gets stores in the liver and muscles.Diabetes is a condition in which the body cannot adequately convert blood sugar into energy. When this happens the blood sugar, called glucose, builds up in the blood stream and does not reach the muscle tissue as it should. This is how diabetes begins to impair major organ functions.
Read the rest of the article here: What Lowers Blood Sugar?