PAUL GLASZIOU: The increase in health care costs has been driven a little bit by aging, a little bit by increases in the costs of technologies but the largest drive is our over-diagnosis and our over-treatment. That is going to get worse. So we're headed for a tsunami of over diagnosis. All that technology is not necessarily going into the right place. We're over-using it in the well and we're under-using it in the people who really need it. Medicine is now spending so much time worrying the well that we don't have time to take care of the sick.

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