Sleep-Disordered Breathing: Expanding Definitions, Diagnostics, and Interventions

This chapter reviews the current state of knowledge on obstructive sleep apnea and related sleep-disordered breathing conditions, with a focus on evolving diagnostic criteria, the increasing availability of ambulatory and wearable monitoring technologies, and the cardiometabolic and neurocognitive consequences of untreated disease. It also examines recent evidence on CPAP adherence strategies, non-positive-pressure alternatives, and the emerging role of precision medicine in tailoring therapy to individual patient phenotypes.