I've always wondered what exactly happens inside my brain after a sleepless night. Why does everything feel harder—thinking ...

Scientists have new insight into why we have trouble focusing after a bad night of sleep. Attention lapses when we’re sleep-deprived result from our brain’s efforts to clean itself up, a process that ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? When study participants took an attention test while sleep-deprived, their ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You’re not yourself when you don’t get enough sleep, making it hard to stay focused on just about ...

If you find it hard to focus after a wakeful night, it’s because your brain is busy trying to catch up on crucial housekeeping. Nearly everyone has experienced it—after a night of poor sleep, your ...

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 ...

New research shows that sleep loss alters specific memory circuits, but also hints that a familiar compound may help restore ...