Adenoids and tonsillar hypertrophy are common causes of OSA in children OSA in children can be associated with abnormal cognitive function, impaired attention, memory loss and lower IQ, and has become an invisible killer that endangers children’s lives! Frequent and loud snoring in early childhood and preschool is a high risk factor for later decline in academic performance, and only some of the cognitive deficits associated with OSA can be reversed even after symptoms have resolved. The association of OSA with sudden infant death syndrome (SIDS) has also been confirmed.