A new study uses optogenetics to induce localized sleep in awake mice, reversing memory loss from sleep deprivation.

Getting adequate sleep affects more than just energy levels—research suggests it also plays a major role in memory, cognition ...

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 ...

A machine-learning analysis of brain waves recorded during sleep may help identify people at high risk of developing dementia, according to a study led by UC San Francisco and Beth Israel Deaconess ...

While it's well known that sleep enhances cognitive performance, the underlying neural mechanisms, particularly those related to nonrapid eye movement (NREM) sleep, remain largely unexplored. A new ...

Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain's small blood vessels, ...

Humans and other animals encounter and remember countless experiences each day; when we sleep, groups of cells in the brain known as neuronal ensembles replay these experiences to consolidate them ...

Chronic stress, depression, cardiovascular disease, fragmented sleep, and aging are all associated with a higher risk of dementia, but scientists have not yet discovered exactly why. Now, a review ...

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists discovered that these attention lapses coincide with waves of fluid washing ...

Turn Screens Off One Hour Before Bed. Experts agree that stepping away from screens is key for an effective wind-down routine ...