Cognitive fluctuations are a defining feature of dementia with Lewy bodies (DLB), helping distinguish it from Alzheimer’s disease — but they remain notoriously difficult to characterize and measure. A 2026 review by Mahajan and colleagues maps the neurobiology, measurement, and clinical implications of fluctuations across the Lewy body spectrum.1 Research Highlights Cognitive fluctuations are episodes …
CBT-I beats sleep medications long-term and self-help versions work too. Sleep hygiene alone isn’t enough — the two are routinely conflated.
In a new study leveraging Mendelian Randomization, researchers highlight the complex interplay between psychiatric disorders, specifically major depressive disorder (MDD), and obstructive sleep apnea (OSA). This meticulous investigation sheds light on the genetic predispositions that suggest a causal relationship between MDD and increased risk of developing OSA, offering new insights into the bidirectional interconnections of …
Sleep and inflammation have long been topics of scientific inquiry, with a growing body of evidence underscoring their intricate relationship. The systemic immune-inflammation index (SII), a novel marker based on leukocyte parameters, has emerged as a significant indicator of systemic inflammation. A recent study explored the association between sleep-related disorders and SII, revealing intriguing connections …
Valerian, a herb long cherished for its sedative properties, stands at the crossroads of traditional medicine and modern scientific inquiry. Despite its widespread use across cultures for promoting sleep and alleviating insomnia, the scientific community remains divided over its efficacy. Highlights: Historical Significance: Valerian has been used since the times of ancient Greece and Rome …
In the quest to effectively treat insomnia, a condition plaguing millions worldwide, scientists are exploring innovative treatments beyond traditional medication. Transcranial Direct Current Stimulation (tDCS) emerges as a promising intervention, offering a non-invasive method to modulate brain activity and enhance sleep quality. A recent study suggests tDCS may treat stress-related sleep disturbances and highlights the …
Narcolepsy, a chronic neurological disorder, significantly impacts the daily lives of those affected due to excessive daytime sleepiness (EDS). Modafinil has been a cornerstone in managing EDS, but its effectiveness can wane over time due to tolerance. An innovative approach, using the drug pitolisant during modafinil ‘drug holidays’, offers new hope for resetting tolerance and …