TL;DR: A 2026 study in Journal of Clinical Sleep Medicine found that 36 of 42 Hodgkin lymphoma survivors tested after mantle radiation therapy had obstructive sleep apnea (OSA), despite mostly normal BMIs and slender necks — an under-recognized phenotype linked to dropped head syndrome. Key Findings 182 long-term HL survivors: All had received mantle radiation …
TL;DR: A 2026 study in Consciousness and Cognition found that waking mind wandering and nighttime dreaming had nearly the same density of bizarre elements, even though dreams were more likely to be rated as bizarre whole reports. Key Findings 379 experience reports: Researchers analyzed daily audio descriptions of one dream and one waking mind-wandering episode …
TL;DR: A 2026 study protocol in Trials describes COSTS, a randomized trial that will compare cognitive behavioral therapy for insomnia (CBT-I) with standard cognitive behavioral therapy (CBT) in 60 people with treatment-resistant schizophrenia and persistent sleep disturbance. Key Findings Planned sample: Researchers aim to enroll 60 adults with treatment-resistant schizophrenia or related chronic psychosis plus …
TL;DR: A 2026 preprint in medRxiv found that under-mattress sleep sensors associated lower nighttime respiratory rate and more unstable nighttime movement with higher odds of next-day agitation in dementia, while the same features did not predict how severe agitation became once it occurred. Key Findings 55 dementia patients supplied the main dataset: Researchers matched 333 …
TL;DR: A 2026 study in Brain, Behavior, & Immunity – Health linked better sleep quality before influenza vaccination and earlier chronotype to stronger immune-response markers in 108 adults. Key Findings Vaccination cohort: Researchers studied sleep, vaccination timing, chronotype, and immune markers in 108 adults after influenza vaccination. Pre-shot sleep quality: Better Pittsburgh Sleep Quality Index …
TL;DR: A 2026 scoping review in Nature and Science of Sleep found that sleep bruxism and gastroesophageal reflux disease were positively associated across 7 adult human studies, but the evidence remains too heterogeneous to prove causality. Key Findings 174 records screened: Database searches in PubMed, Scopus, and Web of Science narrowed 174 references to 7 …
TL;DR: A 2026 cross-sectional study in Nature and Science of Sleep linked second-trimester sleep disturbance, measured with the Pittsburgh Sleep Quality Index (PSQI), to depressive symptoms, vomiting, diet quality, and several birth-outcome patterns in 2,210 pregnant women in Wuhan, China. Key Findings Sleep disturbance affected 18.14%: 401 of 2,210 pregnant women had PSQI scores above …
TL;DR: A 2026 systematic review and meta-analysis in Psychogeriatrics linked loneliness with Alzheimer’s disease and several forms of suicidal behavior, with especially strong shared correlations for hopelessness, insomnia, entrapment, and stress. Key Findings 316 studies reviewed: Researchers found 44 studies on loneliness and Alzheimer’s disease, 261 on loneliness and suicide, and no original study that …
TL;DR: A 2026 real-world cohort study in Journal of Diabetes & Metabolic Disorders linked GLP-1 receptor agonists, drugs targeting a glucose-related metabolic hormone pathway, to a higher hazard of new hypersomnolence, but the absolute risk increase was small. Key Findings 237,986 matched patients: The TriNetX analysis compared 118,993 GLP-1 receptor agonist users with 118,993 matched …
TL;DR: A 2026 randomized study in The Journal of Strength and Conditioning Research found that coherent breathing, a slow 6-breaths-per-minute breathing routine, improved several recovery markers in highly trained 400-meter athletes under repeated race stress without improving race times. Key Findings 22 trained athletes: Researchers randomized 11 athletes to usual recovery and 11 athletes to …
