Normally, it was thought to happen during a state of sleep, where the brain is entirely free to devote all its energies to maintenance, rather than multitasking. The waves of CSF move in and out, ...

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

Usually, this "cleaning" occurs during deep sleep, when waves of cerebrospinal fluid (CSF) flush waste products from the brain. But when you're running on little sleep, those waves sneak into your ...

Medical News Today looks at three key studies and their key findings that highlight and further confirm the connection between how poor sleep increases dementia risk.

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 attention. A new ...

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 ...

We have all had nights when sleep eludes us due to too many late-night emails, the glow of the phone or just that swirl of thoughts that won’t stop. The next morning, we feel foggy, distracted or ...

It’s been known for millennia that the human body accumulates waste as a result of day-to-day functioning, but it’s now recognized that the awake, active brain also builds up waste that negatively ...

Your sleep-deprived brain behaves as if you were about to nod off to sleep, even when you're awake. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Everything’s a little off when you haven’t had any sleep: you can’t remember where you put your cell phone, your eyes burn, and even coffee is starting to taste like defeat. But beneath that groggy ...