What makes diabetes deadly?

Lack of Control: Lack of control makes it deadly. The most common causes of death in diabetics is that of kidney failure or heart disease. Diabetes "wears the kidneys out" and diabetics are at much increased risk for premature heart disease. These co-morbid conditions can be avoided by a great degree by excellent control.

MultipleCollateralDs: Type i often sudden, type ii dm commonly progresses slowly for decades without symptoms, is missed by docs, though artery disease ; other problems also progress more rapidly. Symptoms finally occur: slow unusual feelings ; loss of feelings in legs, kidney failure, blindness, combined with sudden loss of blood supply to body (heart attack, stroke, peripheral artery disease); ulcers, gangrene, etc.