Introduction to Adolescent Sleep Needs Adolescence represents a critical period of intense physical, cognitive, and psychosocial maturation, demanding substantial energetic resources. Central to optimizing these developmental processes is adequate and restorative sleep. While often perceived by adults and teenagers themselves as a mere luxury or a negotiable activity, sleep is biologically mandated for the consolidation […]
Athlete Sleep Behaviors: An Essential Determinant of Performance and Longevity The study of athlete sleep behaviors has emerged as a critical domain within sports science and performance psychology, recognizing that adequate, high-quality sleep is not merely a passive requirement but an active, indispensable component of training and competitive success. For elite athletes, the demands placed […]
Definition and Conceptualization Bedtime procrastination (BTP) is defined as the voluntary failure to go to bed at the intended time, resulting in a reduction of total sleep duration, without being attributable to external circumstances. This phenomenon represents a specific form of generalized procrastination, characterized by a temporal conflict between the proximal goal of immediate gratification—such […]
Introduction to Nocturnal Screen Exposure The integration of mobile technology, particularly the smartphone, into virtually every aspect of modern life has created novel challenges for public health and sleep medicine. Bedtime cell phone use refers to the pervasive habit of engaging with mobile electronic devices immediately prior to, or during, the scheduled sleep period. This […]
The Definition and Importance of the Circadian Rhythm The adult sleep-wake cycle represents a fundamental physiological process governed by powerful internal biological clocks, meticulously orchestrating periods of alertness and rest over an approximate twenty-four-hour period. This rhythm, known as the circadian rhythm, is not merely a passive response to fatigue but an actively regulated oscillation […]
The Cognitive Model of Insomnia Chronic insomnia disorder is recognized not merely as a consequence of physiological factors but largely as a self-perpetuating cycle maintained by cognitive and behavioral mechanisms. Central to this understanding is the cognitive model, which posits that maladaptive beliefs and attitudes about sleep transform transient, acute sleep difficulties into a persistent, […]
Conceptualizing Anxiety and Preoccupation About Sleep Anxiety and preoccupation about sleep represent a critical psychological component often underlying and perpetuating chronic insomnia, particularly the subtype known as psychophysiological insomnia. This phenomenon is characterized not merely by the objective inability to initiate or maintain sleep, but by the intense, often catastrophic, cognitive and emotional distress associated […]
Introduction to Sleep Cognitions Sleep is a fundamental biological process, yet the subjective experience and interpretation of sleep quality are profoundly influenced by cognitive factors, often termed “beliefs about sleep.” These beliefs encompass an individual’s expectations, attitudes, and assumptions regarding the necessity, fragility, and consequences of sleep. Unlike objective physiological measures, these cognitions represent the […]