The space between the arachnoid and pia meningeal layers encasing the brain is a landscape of connective tissue, blood vessels, and cerebrospinal fluid. Scientists debate how that fluid moves within ...

Brain scans show yawning may push fluid out of the brain and boost blood circulation, hinting that yawns help refresh the brain.

I have always liked how yawning feels and wondered what it’s for. I just read there is new information about how yawning affects your brain. Do you know anything about that? Also, do we know yet why ...