If you find it hard to focus after a wakeful night, it’s because your brain is busy trying to catch up on crucial housekeeping.

The space between the arachnoid and pia meningeal layers encasing the brain is a landscape of connective tissue, blood vessels, and cerebrospinal fluid. Scientists debate how that fluid moves within ...

A new breakthrough study from the Rotman Research Institute at Baycrest, University of Toronto (Motsenyat et al., Brain Stimulation 2025) shows that brief sessions of pulsed photobiomodulation (PBM) ...

Typically, CSF flow during sleep helps get rid of built-up waste from the day. Scientists wanted to know how it might be affected by sleep deprivation, so they recruited 26 volunteers to perform tasks ...

Brain's nightly cleaning cycle, crucial for clearing waste like beta-amyloid, falters with sleep loss. This disruption ...

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists ...