What Is It?
In pre-diabetes, blood sugar levels are slightly higher than normal, but still not as high as in diabetes. If diabetes is "runaway blood sugar" think of pre-diabetes as blood sugar that is "halfway out the door."
People almost always develop pre-diabetes before they get type 2 diabetes. The rise in blood sugar levels that is seen in pre-diabetes starts when the body begins to develop a problem called "insulin resistance." Insulin is an important hormone that helps you to process glucose (blood sugar). If usual amounts of insulin can't trigger the body to move glucose out of the bloodstream and into your cells, then you have insulin resistance.