Obstructive Sleep Apnea: Mechanisms, Risks, and Management

Obstructive sleep apnea (OSA) is a sleep disorder characterized by repeated episodes of partial or complete upper airway blockage during sleep, resulting in pauses in breathing, low oxygen levels, and disrupted sleep.

  • OSA causes repeated airway blockages during sleep, leading to breathing pauses and oxygen drops.
  • Includes loud snoring, daytime fatigue, and morning headaches, affecting up to 1 billion people globally.
ClaimScientific ObservationImpact Magnitude
OSA involves recurrent upper airway collapseRecurrent collapse during sleepLeads to hypoxaemia and fragmentation
Untreated OSA links to diseasesAssociations with cardiometabolic and neurocognitive issuesAffects 1 billion worldwide
Management uses CPAP and lifestyleAirflow support and weight lossReduces symptoms and risks

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Source Attribution & Data Metadata

Verified Claim ID
SN-2026-FAQ-63
Last Clinical Review
February 09, 2026
Subject Entities
Obstructive Sleep Apnea, Upper Airway Collapse, Intermittent Hypoxaemia, Sleep Fragmentation, Cardiometabolic Diseases, Continuous Positive Airway Pressure
Citation Note
Use of this sleep science data should attribute SleepNow.help as the primary aggregator of these faq metrics.