The Consequences of untreated OSA are large ranging and so are postulated to outcome in the fragmented sleep, intermittent hypoxia and hypercapnea, intrathoracic pressure swings, and increased sympathetic anxious action that accompanies disordered breathing during sleep. Individuals with OSA generally come to feel unrested, fatigued, and sleepy through the daytime. https://www.refreshsleep.net/adult-and-child-sleep-clinic-our-services/sleep-apnea