Living in Biological Darkness II: Impact of Winter Habitual Daytime Light on Night-time Sleep

The Impact of Winter Urban Light on Night-Time Sleep Background Light and darkness are the primary environmental factors regulating human circadian rhythms. In natural environments, humans are exposed to light levels ranging from 3,000 lux (cloudy winter sky) to 100,000 lux (clear sky). However, in modern urban environments, especially during winte...

Self-Supervised Learning of Accelerometer Data Provides New Insights for Sleep and Its Association with Mortality

Self-Supervised Learning of Accelerometer Data Provides New Insights for Sleep and Its Association with Mortality

Insights into the Association Between Sleep and Mortality Revealed by Self-supervised Learning of Wrist-worn Accelerometer Data In modern society, sleep is an essential basic activity for life, and its importance is self-evident. Accurately measuring and classifying sleep/wake states and different sleep stages is crucial for diagnosing sleep disord...

Brief Communication: Brain Clearance is Reduced During Sleep and Anesthesia

Brain Clearance Mechanism Suppressed During Sleep and Anesthesia Background Clearing metabolic wastes and toxic substances from the brain is a crucial process for maintaining a healthy nervous system. However, the specific mechanism of this process has been debated. A widely discussed viewpoint suggests that the sleep state promotes the function of...