No, not that number, your A1C. Your A1C measures the amount of sugar in your red blood cells and gives an average of your blood sugar over a three-month period. Why is that important? After all ...

C. Ronald Kahn, M.D. President and Director, Joslin Diabetes Center What is the A1c blood test? The hemoglobin A1C test is a measure of what we call long term glucose control. The way this works ...

DEAR DR. ROACH: I am a healthy 63-year-old woman. I walk or do the elliptical four to five times per week for 30-40 minutes, and I also do strength training at the gym three times per week.