Sleep helps the brain to cleanse itself—and now this process can be measured in humans entirely noninvasively. Researchers at the University of Oulu have developed a method that allows the increased ...

Sleep is a complex physiological state characterized by synchronized cortical and cardiac oscillations, which reflect dynamic communication and interaction between the central (CNS) and autonomic (ANS ...

Researchers led by Masako Tamaki at the RIKEN Center for Brain Science in Japan report a link between deep sleep and cerebrospinal fluid, the clear liquid that surrounds and supports the brain and ...

Findings from Mass General Brigham investigators highlight the intricate interplay of diverse physiological processes as the brain shifts from wakefulness to sleep. A new study by investigators from ...

By tracking distinct habits rather than treating sleep as a single uniform metric, researchers proved that sleep durations outside the recommended seven-to-nine-hour window, frequent daytime napping, ...

Still, sometimes sleep suffers. I’m well-aware of what the research says that can entail—health risks and effects on productivity and memory. The idea is that sleep is when the brain has a chance to ...