A friend in another group presented these slides today. She attended a meeting and a Dr Metzger presented them at a FFL conference last weekend. The images left to right show three brain cells...the first image is a brain cell during low blood sugar, the 2nd is a brain cell during normal blood sugar, and the 3rd is a brain cell during high blood sugar. This seems to imply that the cells are more affected by high than by low BG! The graph shows IQ in relation to A1c. Very interesting!