Integrative Approaches to Sleep Quality and Circadian Rhythm Disorders: Clinical Characteristics, Mechanisms, and Therapeutic Strategies

Sleep quality and circadian rhythm disorders encompass a diverse group of conditions with significant impacts on health and daily functioning. This review synthesizes current knowledge on the clinical characteristics, underlying biological and environmental mechanisms, and therapeutic strategies for disorders such as insomnia and circadian rhythm sleep-wake disorders. We explore phenotypic presentations, diagnostic tools including objective measures and biomarkers, and genetic and neurophysiological factors that contribute to pathophysiology. The review highlights the influence of psychosocial and environmental factors alongside neurochemical and molecular pathways. Therapeutic options are discussed, ranging from cognitive-behavioral therapies and light interventions to pharmacological agents and emerging digital health technologies. Emphasizing integrative, personalized approaches, the paper underlines the need to address comorbidities and lifestyle factors for effective management. This comprehensive perspective aims to inform future research and clinical practice in improving sleep health through multidisciplinary strategies.