In some cases, insulin fails because of spoiled receptors.Today many adults do not understand diabetes any better than nine-year old's. So let's take a look at what at what diabetes really is. To be accurate, we should call the disease by its full name, diabetes mellitus, to avoid confusion with a much rarer and totally different type of diabetes, called insipidus.
But average person knows the disease simply as diabetes.Type I diabetes (also called insulin-dependent diabetes mellitus, or IDDM) occurs when the insulin-producing cells in the body do not function, and they make little or no insulin. If the body does not even produce insulin, the glucose cannot move into the cells. To stay alive, the majority of these people will have to depend on insulin injections for the rest of their lives.
Type I is the much less common form of diabetes-only about 10~20 percent of all diabetes are insulin-dependent. This kind of diabetes usually begins in childhood or youth.Type II diabetes (also called non-insulin dependent diabetes mellitus, or NIDDM) most often begins in overweight adults who are over age of 40. With Type II diabetes, the pancreas does still produce some insulin.