Manifestations of<unk>  vary by age and severity of the hypoglycemia. In general, most signs and symptoms can be attributed to (1) the effects on the brain of insufficient glucose (neuroglycopenia) or (2) to the adrenergic response of the autonomic nervous system to hypoglycemia. A few miscellaneous symptoms are harder to attribute to either of these causes. In most cases, all effects are reversed when normal glucose levels are restored. There are uncommon cases of more persistent harm, and rarely even death due to severe hypoglycemia of this type. One reason hypoglycemia due to excessive insulin can be more dangerous is that insulin lowers the available amounts of most alternate brain fuels, such as ketones. Brain damage of various types ranging from stroke-like focal effects to impaired memory and thinking can occur. Children who have prolonged or recurrent<unk>  in infancy can suffer harm to their brains and may be developmentally delayed.
Hyperinsulinemic hypoglycemia
Reactive hypoglycemia
Ketotic hypoglycemia
Diabetic hypoglycemia
Idiopathic hypoglycemia
Hyperproinsulinemia
Stress hyperglycemia
Ketosis-prone diabetes