Prediabetes means a person’s blood glucose (sugar) level is higher than normal, but not high enough yet for a diagnosis of type 2 diabetes. If left untreated, prediabetes can progress into type 2 diabetes. And if 1 in 3 American adults has prediabetes, that means it could be you, your favorite sibling, or your other sibling. Or you, your barber, your barber’s barber. Or you—well, you get the picture. It’s time to take the risk test to know where you stand.