Somebody please explain A1C or HbA1C in adult diabetes

Somebody please explain in layman's terms A1C or HbA1C in adult diabetes.  What does A1C even do?  It's a longer technical term shortened to A1C.  The wikipedia page for A1C is technical gibberish.  A1C must be 5.7 or less, somewhat like cholesterol must be 200 or less.  I'm in America where they keep on playing TV commercials to lower A1C and I doubt if I have prediabetes.  The next time that I go to the library in September to return magazines I'll see if I can find books about diabetes.



EDIT: There's a vanilla cake emoticon, but I wonder if it's made with digital diabetic vanilla!:



EDIT 2:  There's an ice cream flavor called Death by Chocolate, but an even more insensitive name would be Diabetic Death by Chocolate!

Quote: "The hemoglobin A1c (HbA1c) test measures the amount of blood sugar (glucose) attached to your hemoglobin. Hemoglobin is the part of your red blood cells that carries oxygen from your lungs to the rest of your body. It is an important blood test that gives a good indication of how well your diabetes is being controlled." (Source: https://www.diabetes.org.uk/guide-to-diabetes/managing-your-diabetes/hba1c)


I checked the site and in my opinion, it's really good.

Ryu-sama wrote:Quote: "The hemoglobin A1c (HbA1c) test measures the amount of blood sugar (glucose) attached to your hemoglobin. Hemoglobin is the part of your red blood cells that carries oxygen from your lungs to the rest of your body. It is an important blood test that gives a good indication of how well your diabetes is being controlled." (Source: https://www.diabetes.org.uk/guide-to-diabetes/managing-your-diabetes/hba1c)


I checked the site and in my opinion, it's really good.

Oh, so the H in HbA1C stands for hemoglobin!

At the fast food place that I work at, customers have the option of buying a gluten-less bun.  It's funny because it makes me think, "Gunter Gleeben Globben Glugen Gluten Hemoglobin!"  Either "Gunter Gleeben Globben Glugen!" means, "Tip-toeing through the forest barefoot while listening to music," or Def Leppard sang it at the beginning of a song including in Germany because they were bored with singing, "1, 2, 3, 4!"  "Gunter Gleeben Globben Glugen" is German gibberish, but please briefly respond here with a German tongue twister!