Re: #70
HbA1c measures hemoglobin with glucose attached to it. The amount of such glycated hemoglobin is associated with the average blood glucose level over a few months, based on the lifetime of red blood cells. So the average blood glucose level that is implied by HbA1c includes the higher levels in daily fluctuations (e.g. after eating carbohydrate containing foods) as well as the levels after overnight fasts.