Here’s what you’ll learn when you read this story: We have evolved a sleep cycle that goes from non-REM to REM sleep and back again, but until now, the biological function of this oscillation was ...

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 ...

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

Some forms of exercise are worse than others for sleep, too. For instance, high-intensity exercise—like HIIT, sprint ...

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 ...

We live in a world that glamorizes the grind. But let’s set the record straight: sleep isn’t optional. It’s a non-negotiable pillar of health—and it might just be the ultimate wellness hack you’ve ...

SUNDAY, June 1, 2025 (HealthDay News) — Your morning cup of coffee might help you power through the day — but could it be keeping your brain too alert at night, even while you sleep? A new study ...