Sleep

Sleep medicine is undergoing a quiet conceptual revolution. A new commentary in Sleep Medicine Reviews argues that sleep health and sleep disorders are not opposite ends of a single dimension but separate continua that clinicians and researchers must assess independently. Published online July 13 by an international team led by Runtang Meng (Hangzhou Normal University), […]

A new study published in Neurological Sciences reveals that observer dreams, where the dreamer watches events from a third-person perspective rather than participating, occur in roughly 12% of dreams reported by people with Parkinson’s disease, and their frequency is linked to motor symptom severity. The Observer Dream Phenomenon Most dreams feel like lived experience: you […]

New genetic research suggests that childhood maltreatment and certain sleep problems share a bidirectional biological connection, with each influencing risk for the other. Published in the European Journal of Psychotraumatology, the study used a technique called Mendelian randomization (MR) to probe the causal relationships between childhood maltreatment and six sleep-related phenotypes. Unlike traditional observational studies, […]

New genetic research suggests that childhood maltreatment and certain sleep problems share a bidirectional biological connection, with each influencing risk for the other. Published in the European Journal of Psychotraumatology, the study used a technique called Mendelian randomization (MR) to probe the causal relationships between childhood maltreatment and six sleep-related phenotypes. Unlike traditional observational studies, […]

Racial Differences in Sleep Outcomes in the First Two Years of College New longitudinal research tracking 451 college students across their first four semesters reveals that racial and ethnic sleep disparities are not present at college entry but emerge and widen over the first two years, with White students showing the most favorable sleep trajectories […]

Poor sleep and accelerated aging go hand in hand across every stage of adult life, according to the largest and most comprehensive review of the question to date. But whether bad sleep actually causes aging to speed up is a much murkier question, and the new evidence suggests the answer may be “not necessarily.” A […]

A biochemical signal inside brain cells continuously tracks both how long you have been asleep and whether that sleep was fragmented, according to a new preprint from researchers at Washington University in St. Louis. The signal, a phosphorylation event downstream of the enzyme protein kinase A, declines exponentially during every sleep bout, integrates interruptions, and […]

How well you remember contextual details after learning may depend less on how many hours you slept and more on how continuous that sleep was – and this holds true across age groups, according to new research posted as a preprint on bioRxiv. A team led by Chuu Nyan and Audrey Duarte at Georgia Tech […]

Every teenager and young adult has heard the warning: scrolling social media before bed will ruin your sleep. The advice feels intuitive, but the evidence behind it has been surprisingly muddled. Most previous studies have relied on self-reported screen time and subjective sleep ratings, both of which are notoriously unreliable. Could the real relationship be […]

Lead Sleep is not a simple off switch for consciousness. Every night, billions of neurons reorganize their communication patterns, dismantling the brain’s integrative architecture while preserving an active surveillance system for threats and opportunities. A new narrative review published in the Journal of Sleep Research synthesizes decades of neuroimaging, electrophysiology, and computational work to reframe […]