Taking The Big Test

In the "why not" department, I propose that our medical system give everyone willing, an included general MRI or some other complete body view scope of one's physical condition on a determined, scheduled basis throughout their life. I don't know at what stage this procedure could be done, but, I suppose, at various points in adult life. At present, I think it costs about two thousand dollars to have a full MRI or such view. But the costs of treating cancers and tests associated with finding out diseases in people, must be just as high or higher than regular MRIs would be in order to offer early treatment. Having absolutely no medical knowledge about what I am saying, it seems to make sense to me the ignorant tax payer. The test could perhaps be done at intervals throughout one's life to pick up any sneaky bad thing that might invade. Tumors and other potential problems could perhaps then be dealt with, should the individual choose to go that route. We're dealing with the choice to die  dilemma at present, therefore, this move could be the next one? Each time I go to the doctor, which is as little as possible, I am pressured gently to take the blood test I have been avoiding for so long. I am told that while I enjoy good health, the test may help me continue my good luck at this venerable age. So far, I have avoided the issue for the last year but I carry the order form for a blood test in my purse nevertheless. My conscience tells me to do what the doctor orders, even though my spirit tells me not to stir things up. I do not want to find trouble. Often times a blood test indicates a slight rise in glucose levels and then the diabetes talk emerges. Someone close to me, had a blood test and his glucose levels were up a bit. Paying attention to the matter, saw us attending a diabetic clinic to begin a regimen designed to prevent diabetes. Daily exercise was proved to be helpful in reducing sugar levels and a change in diet in which sugars are avoided and all sorts of other nice foods put on the restricted list. We purchased a little testing device that punched holes in a digit to extract a bit of blood so that the small screen showed exactly your "level". All this was done religiously, but diabetes came on anyway and eventually turned into what was actually pancreatic cancer and ultimately, death. I don't want to become morbid but I wonder if an MRI would have picked up the cancerous tumor on the pancreas in its very early stages and thus been extracted and treatments began, rather than waiting the two or three years for it to develop and found out. Just asking. Sometimes cancer sneaks in and by the time it's detected, it's too late to do much about. Pancreatic cancer is very sneaky that way. That's why I propose that, instead of a bunch of blood tests for no reason and fiddling around with little biopsies here and there and waiting weeks for results and then another whole lot of weeks for surgeries and other tests and treatments, we don't just short-cut the whole thing and do some medical detective work such as full MRIs before the finish line?