Dreams transform waking life rather than replaying it directly. In a 2026 Communications Psychology study of 3,366 reports, dreams were more visual, spatial, social, and bizarre than waking reports, while attitude toward dreaming, mind-wandering tendency, sleep quality, and COVID lockdown stress each left measurable fingerprints on dream content.1 Research Highlights Dreams were not random word …
Restless legs syndrome (RLS) and opioid-withdrawal restlessness both produce night-worsening urges to move. A 2026 npj Parkinson’s Disease mouse study tied that overlap to hypersensitive striatal D1-mu-opioid receptor signaling in basal-ganglia motor circuits.1 Research Highlights 2 clinically similar states converged: restless legs syndrome and opioid-withdrawal restlessness both point toward a striatal D1-mu-opioid circuit that regulates …
A Wuhan cohort of 2,210 pregnant women found that mid-pregnancy sleep disturbance was common enough to screen for and associated with several birth-outcome signals. Depressive symptoms, pre-pregnancy alcohol use, and moderate-to-severe vomiting raised sleep-disturbance odds, while higher dietary variety was protective.1 Research Highlights 18.14% had sleep disturbance: Pittsburgh Sleep Quality Index (PSQI) scores greater than …
A 2026 study of Hodgkin lymphoma survivors treated with mantle radiation found obstructive sleep apnea (OSA) in 36 of 42 people who eventually underwent sleep testing. The practical screening target is a younger, non-obese, positional, hypopnea-heavy post-radiation OSA phenotype that standard risk heuristics can miss.1 Research Highlights Sleep symptoms identified a fatigued subgroup: 45 of …
Sleep problems during chemotherapy include more than daytime fatigue. In a 2026 outpatient chemotherapy sample, 87% reported poor sleep quality and 61% had variable sleep timing, while measured bedroom light, temperature, and self-reported environmental disruption were not significantly linked to overall sleep health.1 Research Highlights Small chemotherapy sample: Adams et al. studied 23 adults receiving …
A 2026 iScience paper used simultaneous sleep EEG-fMRI from 2 healthy cohorts totaling 24 people to build slow-wave-related BOLD reference maps and propose SloCAD, a framework for measuring how an individual’s slow-wave brain activity deviates from a healthy reference pattern.1 Research Highlights The proof of concept used 24 healthy participants: 2 independent cohorts (N1 = …
Low-burden digital phenotyping is appealing because college students already leave daily traces in phones, messages, sleep logs, and voice samples. In Henry et al.’s 120-student study, positive emoji use was the clearest signal compared with GPS and complex voice biomarkers: higher positive emoji use tracked lower depression and anxiety, while speech rate and sleep added …