
obstructive sleep apnea syndrome (OSAS)
Obstructive sleep apnea syndrome (OSAS) is a condition where the airway repeatedly becomes partially or completely blocked during sleep, causing breathing to pause temporarily. These interruptions can happen dozens or hundreds of times a night, leading to fragmented sleep and low oxygen levels in the blood. Common symptoms include loud snoring, restless sleep, and daytime fatigue. OSAS is often linked to factors like excess weight, enlarged tissues in the throat, or certain anatomical features. If untreated, it can increase risks for hypertension, heart disease, and impaired daytime functioning. Medical evaluation and treatment improve sleep quality and overall health.