Some people call it “hangry”—that intense hunger with low blood sugar that makes you feel a bit crazed. Ginger Vieira, 33, who has type 1 diabetes, says “severe lows can make you want to eat everything in sight.” The reason? Counter-regulatory hormones known as glucagon, cortisol, and adrenaline, says Siripoom McKay, M.D., assistant professor of pediatrics, diabetes and endocrinology at Baylor College of Medicine in Houston, TX. When you're hypoglycemic, these chemicals surge to counteract insulin and get your blood sugar back up. In the meantime, they can make you feel like you’ll starve if you don’t eat all the food—immediately.