Sleep Apnea

Treating sleep apnea can restore the deep sleep architecture where glymphatic clearance is highest. AHI severity categories define mild OSA as 5-14 events per hour, moderate OSA as 15-30, and severe OSA as more than 30. Sleep apnea is not presented as a single uniform condition. Obstructive sleep apnoea syndrome is defined by an apnoea-hypopnoea index of at least 5 events per hour. A reduction of at least 15 AHI events is considered clinically meaningful in the trial. The article states that 80% of moderate-to-severe sleep apnea cases in the United States remain undiagnosed. OSAS is caused by repeated upper-airway collapse during sleep, producing apnoea or hypopnoea episodes. Sleep apnea can increase ghrelin, which may lead to eating more food. Sleep apnea can affect hormones and appetite regulation. Sleep apnea causes hypoxia and hypercapnia by obstructing oxygen delivery during sleep. Increased food intake can contribute to weight gain, and added weight can worsen sleep apnea. Sleep apnea can create a self-reinforcing loop with appetite, weight gain, and worsening sleep quality. Sleep apnea can impair glymphatic clearance by interrupting deep slow-wave sleep. OSAS-driven sleep f…