Yawning has long been a curious behavior, often contagious and even a little contagious, but now, recent research has ...

One key role of sleep involves cerebrospinal fluid, which surrounds and protects the brain. During sleep, CSF helps remove ...

Turns out your yawn is doing way more than signaling boredom or fatigue – it's actually reorganizing the flow of fluids in ...

Brain tumors are abnormal growths of cells in or around the brain. They can be primary (originating in the brain) or secondary (metastatic, spreading to the brain from cancer elsewhere). They can also ...

Manipulating how much carbon dioxide a person breathes can crank up the brain's 'sewage system', researchers have found. The proof-of-concept study, led by neuroscientists at the University of New ...

Certain times—and workouts—are better than others.