What Is Hypoglycemia?
Glucose (a type of sugar) is the body's main energy source. Hormones, such as insulin, control the level of glucose in the blood. It's unhealthy if a person's glucose levels get too high or too low. Hypoglycemia is when the levels get too low. This can happen to people who have diabetes if they don't eat enough or take too much insulin, which lowers glucose levels. Signs of hypoglycemia include feeling hungry, shaky, sweaty, weak, drowsy, or dizzy. If it's not treated, hypoglycemia can even make someone faint or pass out.