Well if there are no symptoms, everything is just fine! Nice medieval approach to medical well being. Let's not do mammograms to address breast cancer in its early stages when it is curable, or hypertension, or any other disease that produces no symptoms until it's simply too late. I have read the highest mortality from breast cancer in Europe exists in the UK due to an overwhelmed and chronically understaffed NHS. Ever heard of the silent killer? By the time diabetes whether type I or 2 produces symptoms such as neuropathy, blindness, excessive urination and thirst with concomitant renal failure, patients are near death. The course of insulin resistance --type 2 DM--is that it begins silently and people feel great and happy eating all the pasta and cake, and being overweight leads to the minor annoyances of joint pains, fatigue, sleep apnea, and not to mention the huffing and puffing going up a flight of stairs. The strain on the cardiovascular system causes its own toll.