A popular hypothesis for how the brain clears molecular waste, which may help explain why sleep feels refreshing, is a subject of debate. Encased in the skull, perched atop the spine, the brain has a ...

You can see it coming in right there, that little spot,” says neuroscientist and engineer Laura Lewis. A remarkably bright pulsing dot has appeared on the monitor in front of us. We are watching, in ...

The images are authentic and genuinely show the brain of a 44-year-old man with an excess amount of fluid in parts of his brain that may have possibly displaced other brain matter. The images were ...

Your brain’s natural rinse cycle flows while you sleep. A new study suggests certain medications interfere with that important nightly ritual. Researchers record brainwaves along with muscle and eye ...