The human brain has no conventional lymph nodes, no obvious drainage pipes. For most of medical history, scientists assumed ...
Every time you stand up and walk across the room, your abdominal muscles contract in a rhythm you probably never notice.
Researchers used MRI to show yawning drives cerebrospinal fluid and venous blood out of the skull. This unique flow pattern ...
While deep breathing moves CSF toward the brain, yawning sometimes pushes it away. Both actions increase blood flow out of ...