A new study finds that sleep timing is linked to dementia risk, as people with weak circadian rhythms face a 2.5 times higher ...

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 ...

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

Last year, a clinical trial found that a mix of exercise, a healthy diet, social engagement and brain games could improve cognitive capabilities in older adults at risk of cognitive decline or ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images You've probably noticed that you feel more alert and capable after a good ...

We already know that the stimulating powers of caffeine make it an unsuitable choice for a late-night drink – at least if you want to get any shut-eye. But a new study adds a whole extra level of ...

Lots of studies have shown that getting a good night’s rest (seven to eight hours) is associated with better memory and other ...

Imagine awakening to find yourself completely unable to move or speak, perhaps feeling intense pressure on your chest, struggling to breathe, or even seeing strange figures in your bedroom. This ...

CAMBRIDGE, MA -- Nearly everyone has experienced it: After a night of poor sleep, you don’t feel as alert as you should. Your brain might seem foggy, and your mind drifts off when you should be paying ...