(En español: Hipoglucemia) 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 occurs
when the levels get too low. This can happen to people who have
diabetes. It can occur if the person doesn't eat enough or if
the person takes too much insulin, which lowers glucose levels.
A person with hypoglycemia may feel hungry, shaky, sweaty, weak,
drowsy, or dizzy. If left untreated, hypoglycemia may even make
someone faint or pass out.