Diabetes Mellitus is not always easy to understand. First we must know that all food in the body is converted to sugar. That sugar in the body is called glucose (dextrose). Glucose is a simple sugar called a saccaride. Glucose belongs in the cells, it does not belong in the bloodstream. To get from the bloodstream to the cells, insulin is needed. Insulin is released from the pancreas and "pushes" the glucose from the bloodstream into the cells. This is how our cells are feed. There are two types of Diabetes Mellitus. Diabetes I is an autoimmune disease in which the body turns against itself. The pancreas stops producing insulin; therefore, glucose remains in the bloodstream eventhough the body cells are simultaneously starving for glucose. The person must inject insulin periodically to assist the cells in taking up the needed glucose from the blood; therefore this type of diabetes is called insulin-independent diabetes mellitus (IDDM). The insulin must be injected; it cannot be taken orally becasue insulin is a protein that would be digested.
Diabetes Mellitus II is insulin resisitant, which means adipose cells (fat cells) block the normal cells and give insulin a very difficult time "pushing glucose in to the cells." This is true for 80% of all cases. Insulin is in the blood in normal or high amounts, but it does not move the glucose into the cells. As in IDDM, blood glucose rises too high. This type of diabetes is referred to as non-insulin dependent diabetes mellitus (NIDDM). If blood glucose cannot be controlled by diet alone, people with Diabetes II may take insulin or insulin-inducing agents to supplement the body's insulin. But don't be fooled, eating sugar does not cause either type of diabetes.
When someone has "low blood sugar" it means the glucose is not in the cells. This happens when the person does not eat and glucose is not present.. The person becomes weak, fatigued, dizzy, etc, and can pass out. This person needs to eat. "High blood sugar" means there is too much glucose in the bloodsteam and it cannot get into the cells. This person must take insulin.
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