Have you ever wondered what happens in your brain while you sleep? Your brain is anything but inactive. Instead, it ...

Your sleeping brain is not quiet. Electrical waves roll across it, blood vessels rhythmically change size and cerebrospinal ...

Timing is key, however.

Older adults with more fragmented “traveling” sleep waves tended to show both greater tau pathology and poorer memory. Credit ...

Brain waves can be manipulated while in rapid eye movement (REM) sleep, a sleep stage associated with memory and cognition, a new study from the University of Surrey finds. Novel technology, using ...

Poor sleep quality has been linked to cognitive decline, neurodegeneration and Alzheimer's disease in older adults. A new international study led by Concordia researchers and published in the journal ...

Introduction"I feel like my sleep is shallow," "I don't feel refreshed even after waking up in the morning"—more and more ...

Researchers compared cognitively healthy young adults with older adults. They found a key change in brain activity.

Caffeine may make sleep less restorative even when you fall asleep normally and stay in bed for eight hours, with EEG recordings revealing fewer of the slow brain waves associated with deep sleep.

Add Yahoo as a preferred source to see more of our stories on Google. (Ron Lach/Pexels) We know sleep and Alzheimer's disease are intricately linked. In a new study published in the journal Neurology, ...

Brain waves can be manipulated whilst in rapid eye movement (REM) sleep, a sleep stage associated with memory and cognition, a new study from the University of Surrey finds. Novel technology, using ...