Apnea is a condition which is not rare at the same time it’s not a normal state. It’s very much connected with prematurity. Apnea means no breath or stopped breathing. It happens when central nervous system declines to send proper breathing orders to the respiratory muscles. For obstructive apnea infants fail to breathe because of anatomical airway though the orders are given. For toddlers it occurs owing to adenoids & enlarged tonsils, on the contrary for newborns it occurs because of obstacles to the poor muscles of the passageway where air passes from the nose or mouth to the air sacs of the lungs.