Euglycemic conditions are maintained during studies by keeping fasting glucose levels stable at 80 mg/dL and infusing both insulin and glucose to prevent a drop in blood sugar.

“that means when we do the studies we keep you fasting glucose of 80 we don't let the glucose change all we're going to do is raise the insulin and that means you're giving glucose of course because we didn't give glucose then your blood sugar level would drop and then you'd release cortisol you release epinephrine”