Caffeine doesn't just make it harder to fall asleep; it changes how the brain behaves during rest. New research shows that caffeine alters brain activity in ways that make sleep look more like ...

Late-night scrolling isn’t the only thing sabotaging your slumber. New research suggests that a common daily habit may send your brain into overdrive while you sleep — even if you do it hours before ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Ever notice how a lack of sleep can leave you somewhat ...

Scientists recorded the brain's sleep switch firing in real time - and the feedback loop they uncovered reshapes what we know ...

Researchers identify a neural signature for dreaming that occurs in both wakefulness and sleep, challenging the binary definition of consciousness.

Scientists have known for decades that the brain requires sleep to consolidate learning and memory. At the annual meeting of the Society for Neuroscience in San Diego on November 10, 2013, sleep ...

Discover how your brain "cleans" itself at night, and why researchers say sleeping a certain way could play a role.

The brain has its own waste disposal system – known as the glymphatic system – that’s thought to be more active when we sleep. But disrupted sleep might hinder this waste disposal system and slow the ...

It’s easy to think that a few minutes less sleep won’t make much difference. But research shows that, during adolescence, even a short change in bedtime can shape brain development and thinking skills ...

Clinicians use electroencephalography (EEG) to assess brain activity in epilepsy and sleep pathologies, and this powerful ...

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 ...